The Big Bang Theory

The Big Bang Theory

2007 - 2016, Comedy
Comedy about a group of friends who understand more about the laws of physics than they do about interacting with other people. Johnny Galecki, Simon Helberg and Kaley Cuoco star
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Episode Guide

  • The Big Bang Theory - The Meemaw Materialisation (Season 9 Episode 14)
    Season 9 Episode 14:

    The Meemaw Materialisation

    A avó de Sheldon vem visitá-lo, mas ele desanima ao perceber que ela gosta de Penny, mas não simpatiza com Amy. Enquanto isso, Raj conhece uma escritora de livros de ficção científica para crianças e passa a questionar seu relacionamento.

  • The Big Bang Theory - The Opening Night Excitation (Season 9 Episode 11)
    Season 9 Episode 11:

    The Opening Night Excitation

    After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

  • The Big Bang Theory - The Earworm Reverberation (Season 9 Episode 10)
    Season 9 Episode 10:

    The Earworm Reverberation

    Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

  • The Big Bang Theory - The Earworm Reverberation (Season 9 Episode 10)
    Season 9 Episode 10:

    The Earworm Reverberation

    Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

  • The Big Bang Theory - The Spock Resonance (Season 9 Episode 7)
    Season 9 Episode 7:

    The Spock Resonance

    Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

  • The Big Bang Theory - The Helium Insufficiency (Season 9 Episode 6)
    Season 9 Episode 6:

    The Helium Insufficiency

    Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

  • The Big Bang Theory - The Helium Insufficiency (Season 9 Episode 6)
    Season 9 Episode 6:

    The Helium Insufficiency

    Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

  • The Big Bang Theory - The Perspiration Implementation (Season 9 Episode 5)
    Season 9 Episode 5:

    The Perspiration Implementation

    Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

  • The Big Bang Theory - The 2003 Approximation (Season 9 Episode 4)
    Season 9 Episode 4:

    The 2003 Approximation

    An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

  • The Big Bang Theory - The Bachelor Party Corrosion (Season 9 Episode 3)
    Season 9 Episode 3:

    The Bachelor Party Corrosion

    A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

  • The Big Bang Theory - The Separation Oscillation (Season 9 Episode 2)
    Season 9 Episode 2:

    The Separation Oscillation

    Leonard tries to ease Penny's mind; Sheldon plans a special episode of 'Fun With Flags'; Bernadette feels bad about keeping a secret.

  • The Big Bang Theory - The Matrimonial Momentum (Season 9 Episode 1)
    Season 9 Episode 1:

    The Matrimonial Momentum

    Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

  • The Big Bang Theory - The Commitment Determination (Season 8 Episode 24)
    Season 8 Episode 24:

    The Commitment Determination

    While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

  • The Big Bang Theory - The Maternal Combustion (Season 8 Episode 23)
    Season 8 Episode 23:

    The Maternal Combustion

    When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores -- with a little help from his friends.

  • The Big Bang Theory - The Graduation Transmission (Season 8 Episode 22)
    Season 8 Episode 22:

    The Graduation Transmission

    Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

  • The Big Bang Theory - The Communication Deterioration (Season 8 Episode 21)
    Season 8 Episode 21:

    The Communication Deterioration

    The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

  • The Big Bang Theory - The Communication Deterioration (Season 8 Episode 21)
    Season 8 Episode 21:

    The Communication Deterioration

    The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

  • The Big Bang Theory - The Fortification Implementation (Season 8 Episode 20)
    Season 8 Episode 20:

    The Fortification Implementation

    Sheldon and Amy build a blanket fort -- and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

  • The Big Bang Theory - The Fortification Implementation (Season 8 Episode 20)
    Season 8 Episode 20:

    The Fortification Implementation

    Sheldon and Amy build a blanket fort -- and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

  • The Big Bang Theory - The Skywalker Incursion (Season 8 Episode 19)
    Season 8 Episode 19:

    The Skywalker Incursion

    When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of pingpong.

  • The Big Bang Theory - The Skywalker Incursion (Season 8 Episode 19)
    Season 8 Episode 19:

    The Skywalker Incursion

    When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of pingpong.

  • The Big Bang Theory - The Leftover Thermalization (Season 8 Episode 18)
    Season 8 Episode 18:

    The Leftover Thermalization

    A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard; a blackout at Mrs. Wolowitz's results in a final dinner in her honor.

  • The Big Bang Theory - The Colonization Application (Season 8 Episode 17)
    Season 8 Episode 17:

    The Colonization Application

    Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

  • The Big Bang Theory - The Intimacy Acceleration (Season 8 Episode 16)
    Season 8 Episode 16:

    The Intimacy Acceleration

    Penny and Sheldon design an experiment -- as a joke -- to make participants fall in love; Howard and Bernadette get into trouble at the airport.

  • The Big Bang Theory - The Comic Book Store Regeneration (Season 8 Episode 15)
    Season 8 Episode 15:

    The Comic Book Store Regeneration

    While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

  • The Big Bang Theory - The Troll Manifestation (Season 8 Episode 14)
    Season 8 Episode 14:

    The Troll Manifestation

    Sheldon and Leonard must defend themselves from an online bully's criticism after they co-publish a paper; Bernadette, Penny and Amy confront embarrassing moments during a girls night.

  • The Big Bang Theory - The Anxiety Optimization (Season 8 Episode 13)
    Season 8 Episode 13:

    The Anxiety Optimization

    Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

  • The Big Bang Theory - The Space Probe Disintegration (Season 8 Episode 12)
    Season 8 Episode 12:

    The Space Probe Disintegration

    When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.

  • The Big Bang Theory - The Clean Room Infiltration (Season 8 Episode 11)
    Season 8 Episode 11:

    The Clean Room Infiltration

    Leonard and Wolowitz clash over a work emergency; Amy throws a Victorian Christmas party which Sheldon resents.

  • The Big Bang Theory - The Champagne Reflection (Season 8 Episode 10)
    Season 8 Episode 10:

    The Champagne Reflection

    Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.

  • The Big Bang Theory - The Septum Deviation (Season 8 Episode 9)
    Season 8 Episode 9:

    The Septum Deviation

    Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

  • The Big Bang Theory - The Prom Equivalency (Season 8 Episode 8)
    Season 8 Episode 8:

    The Prom Equivalency

    Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.

  • The Big Bang Theory - The Misinterpretation Agitation (Season 8 Episode 7)
    Season 8 Episode 7:

    The Misinterpretation Agitation

    The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

  • The Big Bang Theory - The Expedition Approximation (Season 8 Episode 6)
    Season 8 Episode 6:

    The Expedition Approximation

    Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

  • The Big Bang Theory - The Focus Attenuation (Season 8 Episode 5)
    Season 8 Episode 5:

    The Focus Attenuation

    During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.

  • The Big Bang Theory - The Hook-Up Reverberation (Season 8 Episode 4)
    Season 8 Episode 4:

    The Hook-Up Reverberation

    Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

  • The Big Bang Theory - The First Pitch Insufficiency (Season 8 Episode 3)
    Season 8 Episode 3:

    The First Pitch Insufficiency

    Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

  • The Big Bang Theory - The Junior Professor Solution (Season 8 Episode 2)
    Season 8 Episode 2:

    The Junior Professor Solution

    When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette.

  • The Big Bang Theory - The Locomotion Interruption (Season 8 Episode 1)
    Season 8 Episode 1:

    The Locomotion Interruption

    Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

  • The Big Bang Theory - The Status Quo Combustion (Season 7 Episode 24)
    Season 7 Episode 24:

    The Status Quo Combustion

    Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

  • The Big Bang Theory - The Gorilla Dissolution (Season 7 Episode 23)
    Season 7 Episode 23:

    The Gorilla Dissolution

    A bad day compels Penny to re-evaluate her choices -- including Leonard; Bernadette and Howard must care for Mrs. Wolowitz; Sheldon gives Raj advice on relationships.

  • The Big Bang Theory - The Proton Transmogrification (Season 7 Episode 22)
    Season 7 Episode 22:

    The Proton Transmogrification

    Professor Proton (Bob Newhart) helps Sheldon deal with grief; Leonard gets into a competition with Penny; Bernadette and Amy prepare a 'Star Wars Day' gift for the guys.

  • The Big Bang Theory - The Anything Can Happen Recurrence (Season 7 Episode 21)
    Season 7 Episode 21:

    The Anything Can Happen Recurrence

    Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.

  • The Big Bang Theory - The Relationship Diremption (Season 7 Episode 20)
    Season 7 Episode 20:

    The Relationship Diremption

    Sheldon has a personal crisis when he decides string theory is a waste of his time; a double date ends in embarrassment for Howard.

  • The Big Bang Theory - The Indecision Amalgamation (Season 7 Episode 19)
    Season 7 Episode 19:

    The Indecision Amalgamation

    Raj struggles with guilt when he dates two women at once; Penny has a chance to play a part in a cheesy movie; Sheldon is torn between two gaming systems.

  • The Big Bang Theory - The Indecision Amalgamation (Season 7 Episode 19)
    Season 7 Episode 19:

    The Indecision Amalgamation

    Raj struggles with guilt when he dates two women at once; Penny has a chance to play a part in a cheesy movie; Sheldon is torn between two gaming systems.

  • The Big Bang Theory - The Mommy Observation (Season 7 Episode 18)
    Season 7 Episode 18:

    The Mommy Observation

    Sheldon is faced with a new reality when he visits his mom in Houston; a murder mystery party starts arguments.

  • The Big Bang Theory - The Mommy Observation (Season 7 Episode 18)
    Season 7 Episode 18:

    The Mommy Observation

    Sheldon is faced with a new reality when he visits his mom in Houston; a murder mystery party starts arguments.

  • The Big Bang Theory - The Friendship Turbulence (Season 7 Episode 17)
    Season 7 Episode 17:

    The Friendship Turbulence

    Bernadette tries to negotiate peace between Sheldon and Wolowitz; Penny receives an embarrassing offer; Raj wants Amy to write to a woman on his behalf.

  • The Big Bang Theory - The Table Polarization (Season 7 Episode 16)
    Season 7 Episode 16:

    The Table Polarization

    When Leonard buys a dining room table, Sheldon re-evaluates the changes in his life; Bernadette is torn when Wolowitz gets the chance to go back to space.

  • The Big Bang Theory - The Locomotive Manipulation (Season 7 Episode 15)
    Season 7 Episode 15:

    The Locomotive Manipulation

    Sheldon and Amy go on a trip to wine country with Howard and Bernadette; Penny and Leonard rush Raj's dog to the vet.

  • The Big Bang Theory - The Convention Conundrum (Season 7 Episode 14)
    Season 7 Episode 14:

    The Convention Conundrum

    Unable to get Comic-Con tickets, Sheldon tries to hold his own convention and ends up spending a wild evening with James Earl Jones; the ladies try to act maturely.

  • The Big Bang Theory - The Occupation Recalibration (Season 7 Episode 13)
    Season 7 Episode 13:

    The Occupation Recalibration

    Sheldon must learn how to relax when he is forced to take a vacation; Leonard tries to support Penny when she quits her job; Bernadette needs to replace one of Stuart's comic books.

  • The Big Bang Theory - The Hesitation Ramification (Season 7 Episode 12)
    Season 7 Episode 12:

    The Hesitation Ramification

    As Leonard tries to help Penny with a disappointment, Penny asks him a bold question about their relationship; Sheldon wants to learn how to be funny.

  • The Big Bang Theory - The Cooper Extraction (Season 7 Episode 11)
    Season 7 Episode 11:

    The Cooper Extraction

    While Sheldon is in Texas, the rest of the gang realizes how much he has changed their lives as they decorate the apartment Christmas tree.

  • The Big Bang Theory - The Cooper Extraction (Season 7 Episode 11)
    Season 7 Episode 11:

    The Cooper Extraction

    While Sheldon is in Texas, the rest of the gang realizes how much he has changed their lives as they decorate the apartment Christmas tree.

  • The Big Bang Theory - The Discovery Dissipation (Season 7 Episode 10)
    Season 7 Episode 10:

    The Discovery Dissipation

    Amy and Leonard try to help Sheldon deal with his shame; Raj stays with Bernadette and Howard for a week.

  • The Big Bang Theory - The Thanksgiving Decoupling (Season 7 Episode 9)
    Season 7 Episode 9:

    The Thanksgiving Decoupling

    When the gang decides to spend Thanksgiving at Mrs. Wolowitz's house, Sheldon protests; Leonard and Penny deal with an error from her past.

  • The Big Bang Theory - The Itchy Brain Simulation (Season 7 Episode 8)
    Season 7 Episode 8:

    The Itchy Brain Simulation

    When a mistake comes to light, Sheldon makes Leonard walk a mile in his shoes; Penny decides to confront Raj's ex.

  • The Big Bang Theory - The Proton Displacement (Season 7 Episode 7)
    Season 7 Episode 7:

    The Proton Displacement

    When Professor Proton asks Leonard for help with an experiment, Sheldon retaliates by befriending Proton's rival, Bill Nye.

  • The Big Bang Theory - The Romance Resonance (Season 7 Episode 6)
    Season 7 Episode 6:

    The Romance Resonance

    Sheldon's latest scientific breakthrough leaves him feeling like a fraud; a romantic gesture between Howard and Bernadette causes Penny to up her game with Leonard.

  • The Big Bang Theory - The Workplace Proximity (Season 7 Episode 5)
    Season 7 Episode 5:

    The Workplace Proximity

    Sheldon and Amy's relationship is tested when she takes a job at his university; a fight with Bernadette leaves Howard sleeping on Raj's couch.

  • The Big Bang Theory - The Raiders Minimization (Season 7 Episode 4)
    Season 7 Episode 4:

    The Raiders Minimization

    Sheldon wants revenge after Amy ruins one of his favorite films; Leonard finds a way to get Penny to do anything; Stuart and Raj make online dating profiles.

  • The Big Bang Theory - The Scavenger Vortex (Season 7 Episode 3)
    Season 7 Episode 3:

    The Scavenger Vortex

    Raj designs a scavenger hunt that brings out the best -- and the worst -- in the whole gang.

  • The Big Bang Theory - The Deception Verification (Season 7 Episode 2)
    Season 7 Episode 2:

    The Deception Verification

    Leonard and Sheldon's friendship is tested; Wolowitz's relationship with his mom causes a threat to his masculinity.

  • The Big Bang Theory - The Hofstadter Insufficiency (Season 7 Episode 1)
    Season 7 Episode 1:

    The Hofstadter Insufficiency

    Sheldon and Penny share secrets while Leonard is away; Wolowitz helps Raj get over his ex.

  • The Big Bang Theory - The Bon Voyage Reaction (Season 6 Episode 24)
    Season 6 Episode 24:

    The Bon Voyage Reaction

    When Leonard receives an exciting opportunity to work overseas, Penny and Sheldon are thrown for a loop.

  • The Big Bang Theory - The Love Spell Potential (Season 6 Episode 23)
    Season 6 Episode 23:

    The Love Spell Potential

    Amy and Sheldon's relationship takes a surprising turn during a game of 'Dungeons & Dragons'; Lucy and Koothrappali have an awkward date.

  • The Big Bang Theory - The Proton Resurgence (Season 6 Episode 22)
    Season 6 Episode 22:

    The Proton Resurgence

    Leonard and Sheldon hire the host (Bob Newhart) of their favorite childhood TV show to perform; Bernadette and Howard run into trouble while dog-sitting for Raj's pet.

  • The Big Bang Theory - The Closure Alternative (Season 6 Episode 21)
    Season 6 Episode 21:

    The Closure Alternative

    Amy tries to help Sheldon get over his compulsive need for closure when one of his favorite TV shows is canceled; Raj discovers a secret about Lucy.

  • The Big Bang Theory - The Closure Alternative (Season 6 Episode 21)
    Season 6 Episode 21:

    The Closure Alternative

    Amy tries to help Sheldon get over his compulsive need for closure when one of his favorite TV shows is canceled; Raj discovers a secret about Lucy.

  • The Big Bang Theory - The Tenure Turbulence (Season 6 Episode 20)
    Season 6 Episode 20:

    The Tenure Turbulence

    The girls get involved when Leonard, Sheldon and Raj compete for tenure at the University.

  • The Big Bang Theory - The Closet Reconfiguration (Season 6 Episode 19)
    Season 6 Episode 19:

    The Closet Reconfiguration

    Howard considers whether or not he should open a letter from his father; Penny and Leonard host a 'grown-up' cocktail party.

  • The Big Bang Theory - The Contractual Obligation Implementation (Season 6 Episode 18)
    Season 6 Episode 18:

    The Contractual Obligation Implementation

    Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.

  • The Big Bang Theory - The Monster Isolation (Season 6 Episode 17)
    Season 6 Episode 17:

    The Monster Isolation

    After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

  • The Big Bang Theory - The Tangible Affection Proof (Season 6 Episode 16)
    Season 6 Episode 16:

    The Tangible Affection Proof

    The guys search for a perfect Valentine's Day gift for their significant others; Stuart and Raj host a 'lonely people' party at the comic book store.

  • The Big Bang Theory - The Spoiler Alert Segmentation (Season 6 Episode 15)
    Season 6 Episode 15:

    The Spoiler Alert Segmentation

    A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

  • The Big Bang Theory - The Cooper/Kripke Inversion (Season 6 Episode 14)
    Season 6 Episode 14:

    The Cooper/Kripke Inversion

    Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke; Raj and Howard buy expensive action figures of themselves.

  • The Big Bang Theory - The Bakersfield Expedition (Season 6 Episode 13)
    Season 6 Episode 13:

    The Bakersfield Expedition

    As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

  • The Big Bang Theory - The Egg Salad Equivalency (Season 6 Episode 12)
    Season 6 Episode 12:

    The Egg Salad Equivalency

    When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.

  • The Big Bang Theory - The Santa Simulation (Season 6 Episode 11)
    Season 6 Episode 11:

    The Santa Simulation

    During a game, Sheldon revisits Christmas memories; Amy, Penny and Bernadette look for a date for Koothrappali.

  • The Big Bang Theory - The Fish Guts Displacement (Season 6 Episode 10)
    Season 6 Episode 10:

    The Fish Guts Displacement

    When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

  • The Big Bang Theory - The Parking Spot Escalation (Season 6 Episode 9)
    Season 6 Episode 9:

    The Parking Spot Escalation

    Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

  • The Big Bang Theory - The 43 Peculiarity (Season 6 Episode 8)
    Season 6 Episode 8:

    The 43 Peculiarity

    Raj and Howard try to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.

  • The Big Bang Theory - The Habitation Configuration (Season 6 Episode 7)
    Season 6 Episode 7:

    The Habitation Configuration

    Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

  • The Big Bang Theory - The Habitation Configuration (Season 6 Episode 7)
    Season 6 Episode 7:

    The Habitation Configuration

    Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

  • The Big Bang Theory - The Extract Obliteration (Season 6 Episode 6)
    Season 6 Episode 6:

    The Extract Obliteration

    A game threatens Sheldon's relationship with Stephen Hawking; Penny secretly signs up for a college class.

  • The Big Bang Theory - The Holographic Excitation (Season 6 Episode 5)
    Season 6 Episode 5:

    The Holographic Excitation

    The gang heads to Stuart's comic book store to celebrate Halloween; Leonard uses science to seduce Penny.

  • The Big Bang Theory - The Holographic Excitation (Season 6 Episode 5)
    Season 6 Episode 5:

    The Holographic Excitation

    The gang heads to Stuart's comic book store to celebrate Halloween; Leonard uses science to seduce Penny.

  • The Big Bang Theory - The Re-Entry Minimization (Season 6 Episode 4)
    Season 6 Episode 4:

    The Re-Entry Minimization

    Wolowitz's return from space isn't all he expected; game night becomes a gender war.

  • The Big Bang Theory - The Higgs Boson Observation (Season 6 Episode 3)
    Season 6 Episode 3:

    The Higgs Boson Observation

    Amy feels threatened by Sheldon's new assistant; Wolowitz starts to feel the pressures of being in space.

  • The Big Bang Theory - The Higgs Boson Observation (Season 6 Episode 3)
    Season 6 Episode 3:

    The Higgs Boson Observation

    Amy feels threatened by Sheldon's new assistant; Wolowitz starts to feel the pressures of being in space.

  • The Big Bang Theory - The Decoupling Fluctuation (Season 6 Episode 2)
    Season 6 Episode 2:

    The Decoupling Fluctuation

    Sheldon tries to intervene when he learns that Penny is thinking about breaking up with Leonard; Howard is picked on.

  • The Big Bang Theory - The Decoupling Fluctuation (Season 6 Episode 2)
    Season 6 Episode 2:

    The Decoupling Fluctuation

    Sheldon tries to intervene when he learns that Penny is thinking about breaking up with Leonard; Howard is picked on.

  • The Big Bang Theory - The Date Night Variable (Season 6 Episode 1)
    Season 6 Episode 1:

    The Date Night Variable

    Raj faces his loneliness when his friends are out on dates; while in space, Wolowitz gets drawn into a fight between Bernadette and his mom.

  • The Big Bang Theory - The Countdown Reflection (Season 5 Episode 24)
    Season 5 Episode 24:

    The Countdown Reflection

    The gang tries to help Wolowitz and Bernadette get married before the space launch.

  • The Big Bang Theory - The Launch Acceleration (Season 5 Episode 23)
    Season 5 Episode 23:

    The Launch Acceleration

    Wedding plans are jeopardized when NASA reschedules Howard's mission; Leonard says something in the bedroom that surprises Penny.

  • The Big Bang Theory - The Stag Convergence (Season 5 Episode 22)
    Season 5 Episode 22:

    The Stag Convergence

    Knowledge of Howard's sexual history makes Bernadette reconsider their future together.

  • The Big Bang Theory - The Hawking Excitation (Season 5 Episode 21)
    Season 5 Episode 21:

    The Hawking Excitation

    When Wolowitz works with Stephen Hawking, Sheldon is determined to meet the famous scientist.

  • The Big Bang Theory - The Transporter Malfunction (Season 5 Episode 20)
    Season 5 Episode 20:

    The Transporter Malfunction

    When Penny buys Leonard and Sheldon 'Star Trek' collectibles, Sheldon finds himself haunted by Mr. Spock; after a blind date, Raj believes he has met his future wife.

  • The Big Bang Theory - The Weekend Vortex (Season 5 Episode 19)
    Season 5 Episode 19:

    The Weekend Vortex

    Sheldon plans a video game marathon with the guys instead of attending a birthday party for Amy's aunt.

  • The Big Bang Theory - The Werewolf Transformation (Season 5 Episode 18)
    Season 5 Episode 18:

    The Werewolf Transformation

    Sheldon's routine is turned upside down when his barber gets sick; Wolowitz questions his decision to go into space.

  • The Big Bang Theory - The Rothman Disintegration (Season 5 Episode 17)
    Season 5 Episode 17:

    The Rothman Disintegration

    Sheldon and his nemesis, Kripke (John Ross Bowie), compete for a corner office; Penny feels uncomfortable after receiving a gift from Amy.

  • The Big Bang Theory - The Rothman Disintegration (Season 5 Episode 17)
    Season 5 Episode 17:

    The Rothman Disintegration

    Sheldon and his nemesis, Kripke (John Ross Bowie), compete for a corner office; Penny feels uncomfortable after receiving a gift from Amy.

  • The Big Bang Theory - The Vacation Solution (Season 5 Episode 16)
    Season 5 Episode 16:

    The Vacation Solution

    Sheldon goes to work with Amy in her lab when the university forces him to take a vacation; Bernadette asks Howard to sign a pre-nup.

  • The Big Bang Theory - The Vacation Solution (Season 5 Episode 16)
    Season 5 Episode 16:

    The Vacation Solution

    Sheldon goes to work with Amy in her lab when the university forces him to take a vacation; Bernadette asks Howard to sign a pre-nup.

  • The Big Bang Theory - The Friendship Contraction (Season 5 Episode 15)
    Season 5 Episode 15:

    The Friendship Contraction

    Leonard starts to reconsider his friendship with Sheldon; Wolowitz tries to choose his astronaut nickname.

  • The Big Bang Theory - The Beta Test Initiation (Season 5 Episode 14)
    Season 5 Episode 14:

    The Beta Test Initiation

    Penny and Leonard experiment with their new relationship; Raj forms a bond with his phone's virtual assistant.

  • The Big Bang Theory - The Beta Test Initiation (Season 5 Episode 14)
    Season 5 Episode 14:

    The Beta Test Initiation

    Penny and Leonard experiment with their new relationship; Raj forms a bond with his phone's virtual assistant.

  • The Big Bang Theory - The Recombination Hypothesis (Season 5 Episode 13)
    Season 5 Episode 13:

    The Recombination Hypothesis

    Everything could change when Leonard spontaneously invites Penny to a romantic dinner.

  • The Big Bang Theory - The Shiny Trinket Maneuver (Season 5 Episode 12)
    Season 5 Episode 12:

    The Shiny Trinket Maneuver

    Amy is upset with Sheldon when he isn't impressed with her recent accomplishment; Howard struggles with Bernadette's aversion to children.

  • The Big Bang Theory - The Speckerman Recurrence (Season 5 Episode 11)
    Season 5 Episode 11:

    The Speckerman Recurrence

    Leonard must face the bully who targeted him in high school; Penny confronts her past actions.

  • The Big Bang Theory - The Flaming Spittoon Acquisition (Season 5 Episode 10)
    Season 5 Episode 10:

    The Flaming Spittoon Acquisition

    Comic-book store owner Stuart asks Amy out on a date, forcing a jealous Sheldon to consider the future of his relationship with her. Meanwhile, the scientists become obsessed with an unusual new card game, and Penny organises a round of Twister. Comedy, starring Jim Parsons and Mayim Bialik

  • The Big Bang Theory - The Flaming Spittoon Acquisition (Season 5 Episode 10)
    Season 5 Episode 10:

    The Flaming Spittoon Acquisition

    Comic-book store owner Stuart asks Amy out on a date, forcing a jealous Sheldon to consider the future of his relationship with her. Meanwhile, the scientists become obsessed with an unusual new card game, and Penny organises a round of Twister. Comedy, starring Jim Parsons and Mayim Bialik

  • The Big Bang Theory - The Ornithophobia Diffusion (Season 5 Episode 9)
    Season 5 Episode 9:

    The Ornithophobia Diffusion

    Leonard and Penny spend time alone; Sheldon tries to face his fear of birds.

  • The Big Bang Theory - The Isolation Permutation (Season 5 Episode 8)
    Season 5 Episode 8:

    The Isolation Permutation

    Amy is devastated when Penny and Bernadette shop for wedding dresses without her.

  • The Big Bang Theory - The Isolation Permutation (Season 5 Episode 8)
    Season 5 Episode 8:

    The Isolation Permutation

    Amy is devastated when Penny and Bernadette shop for wedding dresses without her.

  • The Big Bang Theory - The Good Guy Fluctuation (Season 5 Episode 7)
    Season 5 Episode 7:

    The Good Guy Fluctuation

    An attractive comic book artist tests Leonard and Priya's relationship; Sheldon tries to scare his friends.

  • The Big Bang Theory - The Rhinitis Revelation (Season 5 Episode 6)
    Season 5 Episode 6:

    The Rhinitis Revelation

    Sheldon finds himself competing with the gang for his mother's (Laurie Metcalf) attention when she visits.

  • The Big Bang Theory - The Rhinitis Revelation (Season 5 Episode 6)
    Season 5 Episode 6:

    The Rhinitis Revelation

    Sheldon finds himself competing with the gang for his mother's (Laurie Metcalf) attention when she visits.

  • The Big Bang Theory - The Russian Rocket Reaction (Season 5 Episode 5)
    Season 5 Episode 5:

    The Russian Rocket Reaction

    Wil Wheaton invites Leonard and Sheldon to a party at his house; Howard receives an opportunity.

  • The Big Bang Theory - The Wiggly Finger Catalyst (Season 5 Episode 4)
    Season 5 Episode 4:

    The Wiggly Finger Catalyst

    Raj wants a girlfriend, so Penny introduces him to a woman he can communicate with.

  • The Big Bang Theory - The Pulled Groin Extrapolation (Season 5 Episode 3)
    Season 5 Episode 3:

    The Pulled Groin Extrapolation

    Amy and Leonard try to become better acquainted; Bernadette, Howard and Mrs. Wolowitz spend the weekend together.

  • The Big Bang Theory - The Infestation Hypothesis (Season 5 Episode 2)
    Season 5 Episode 2:

    The Infestation Hypothesis

    Amy is caught in the middle when Penny and Sheldon get into an argument over a pre-owned chair; Leonard tries to make his long-distance relationship more exciting.

  • The Big Bang Theory - The Skank Reflex Analysis (Season 5 Episode 1)
    Season 5 Episode 1:

    The Skank Reflex Analysis

    Penny worries that she has ruined her relationship with her friends; Sheldon takes over the paintball team.

  • The Big Bang Theory - The Roommate Transmogrification (Season 4 Episode 24)
    Season 4 Episode 24:

    The Roommate Transmogrification

    Bernadette gets her Ph.D., inspiring the guys to tease Wolowitz about his lack of a doctorate; Raj becomes Sheldon's roommate.

  • The Big Bang Theory - The Engagement Reaction (Season 4 Episode 23)
    Season 4 Episode 23:

    The Engagement Reaction

    Howard's mom winds up in the hospital after hearing news of her son's engagement to Bernadette.

  • The Big Bang Theory - The Wildebeest Implementation (Season 4 Episode 22)
    Season 4 Episode 22:

    The Wildebeest Implementation

    Raj tries to cure his social anxiety; Penny spies on Leonard and his girlfriend through Bernadette.

  • The Big Bang Theory - The Agreement Dissection (Season 4 Episode 21)
    Season 4 Episode 21:

    The Agreement Dissection

    Priya dissects the roommate agreement; the ladies take Sheldon dancing.

  • The Big Bang Theory - The Agreement Dissection (Season 4 Episode 21)
    Season 4 Episode 21:

    The Agreement Dissection

    Priya dissects the roommate agreement; the ladies take Sheldon dancing.

  • The Big Bang Theory - The Herb Garden Germination (Season 4 Episode 20)
    Season 4 Episode 20:

    The Herb Garden Germination

    Amy and Sheldon spread gossip as part of an experiment; Howard decides to take a big step in his relationship with Bernadette.

  • The Big Bang Theory - The Zarnecki Incursion (Season 4 Episode 19)
    Season 4 Episode 19:

    The Zarnecki Incursion

    The guys try to figure out who hacked Sheldon's online-game account.

  • The Big Bang Theory - The Prestidigitation Approximation (Season 4 Episode 18)
    Season 4 Episode 18:

    The Prestidigitation Approximation

    Leonard is forced to choose between Penny and his new girlfriend, Priya; Howard's magic trick drives Sheldon crazy.

  • The Big Bang Theory - The Toast Derivation (Season 4 Episode 17)
    Season 4 Episode 17:

    The Toast Derivation

    Sheldon is upset when he realizes Leonard is the center of their group of friends.

  • The Big Bang Theory - The Cohabitation Formulation (Season 4 Episode 16)
    Season 4 Episode 16:

    The Cohabitation Formulation

    Wolowitz considers taking things with Bernadette to the next level; Leonard and Raj's sister rekindle their relationship.

  • The Big Bang Theory - The Cohabitation Formulation (Season 4 Episode 16)
    Season 4 Episode 16:

    The Cohabitation Formulation

    Wolowitz considers taking things with Bernadette to the next level; Leonard and Raj's sister rekindle their relationship.

  • The Big Bang Theory - The Benefactor Factor (Season 4 Episode 15)
    Season 4 Episode 15:

    The Benefactor Factor

    A wealthy donor makes Leonard question how what he is willing to do for science.

  • The Big Bang Theory - The Thespian Catalyst (Season 4 Episode 14)
    Season 4 Episode 14:

    The Thespian Catalyst

    Sheldon takes acting lessons from Penny in hope of becoming a better teacher; Koothrappali fantasizes about his friend's girlfriend.

  • The Big Bang Theory - The Love Car Displacement (Season 4 Episode 13)
    Season 4 Episode 13:

    The Love Car Displacement

    Bernadette runs into her ex-boyfriend (Rick Fox) while attending a science event with Wolowitz.

  • The Big Bang Theory - The Bus Pants Utilization (Season 4 Episode 12)
    Season 4 Episode 12:

    The Bus Pants Utilization

    Leonard's idea for a smartphone application causes friction in his friendship with Sheldon.

  • The Big Bang Theory - The Justice League Recombination (Season 4 Episode 11)
    Season 4 Episode 11:

    The Justice League Recombination

    The guys try to bond with Penny's new boyfriend through a costume contest.

  • The Big Bang Theory - The Alien Parasite Hypothesis (Season 4 Episode 10)
    Season 4 Episode 10:

    The Alien Parasite Hypothesis

    Amy realizes she has feelings for Penny's ex; Koothrappali and Wolowitz try to prove who would be a better superhero.

  • The Big Bang Theory - The Boyfriend Complexity (Season 4 Episode 9)
    Season 4 Episode 9:

    The Boyfriend Complexity

    Penny asks Leonard to lie to her father (Keith Carradine); Howard, Raj and Bernadette pull an all-nighter at a telescope.

  • The Big Bang Theory - The 21-Second Excitation (Season 4 Episode 8)
    Season 4 Episode 8:

    The 21-Second Excitation

    While the guys camp out for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party.

  • The Big Bang Theory - The Apology Insufficiency (Season 4 Episode 7)
    Season 4 Episode 7:

    The Apology Insufficiency

    Sheldon's interview with the FBI jeopardizes Wolowitz's security clearance.

  • The Big Bang Theory - The Apology Insufficiency (Season 4 Episode 7)
    Season 4 Episode 7:

    The Apology Insufficiency

    Sheldon's interview with the FBI jeopardizes Wolowitz's security clearance.

  • The Big Bang Theory - The Irish Pub Formulation (Season 4 Episode 6)
    Season 4 Episode 6:

    The Irish Pub Formulation

    Leonard keeps an affair a secret from Sheldon, Howard and Raj.

  • The Big Bang Theory - The Desperation Emanation (Season 4 Episode 5)
    Season 4 Episode 5:

    The Desperation Emanation

    Leonard realizes he is the only one in his group without a girlfriend; Sheldon wants to get rid of his girlfriend.

  • The Big Bang Theory - The Hot Troll Deviation (Season 4 Episode 4)
    Season 4 Episode 4:

    The Hot Troll Deviation

    An embarrassing secret of Wolowitz's is revealed; Raj and Sheldon get into a war at work.

  • The Big Bang Theory - The Zazzy Substitution (Season 4 Episode 3)
    Season 4 Episode 3:

    The Zazzy Substitution

    When Sheldon searches for an alternative to human companionship, the guys become concerned.

  • The Big Bang Theory - The Cruciferous Vegetable Amplification (Season 4 Episode 2)
    Season 4 Episode 2:

    The Cruciferous Vegetable Amplification

    Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span.

  • The Big Bang Theory - The Robotic Manipulation (Season 4 Episode 1)
    Season 4 Episode 1:

    The Robotic Manipulation

    Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.

  • The Big Bang Theory - The Lunar Excitation (Season 3 Episode 23)
    Season 3 Episode 23:

    The Lunar Excitation

    Raj and Howard set up an online dating profile for Sheldon and find the perfect woman.

  • The Big Bang Theory - The Staircase Implementation (Season 3 Episode 22)
    Season 3 Episode 22:

    The Staircase Implementation

    Leonard tells Penny about how he met Sheldon and what happened to the elevator.

  • The Big Bang Theory - The Plimpton Stimulation (Season 3 Episode 21)
    Season 3 Episode 21:

    The Plimpton Stimulation

    Sheldon invites a famous physicist to the apartment, and competes with Leonard for her attention.

  • The Big Bang Theory - The Spaghetti Catalyst (Season 3 Episode 20)
    Season 3 Episode 20:

    The Spaghetti Catalyst

    Sheldon goes to extremes to keep Leonard and Penny happy when they stop speaking to each other.

  • The Big Bang Theory - The Wheaton Recurrence (Season 3 Episode 19)
    Season 3 Episode 19:

    The Wheaton Recurrence

    Penny and Leonard have a fight that threatens their relationship; Sheldon and Wil Wheaton face off once again.

  • The Big Bang Theory - The Pants Alternative (Season 3 Episode 18)
    Season 3 Episode 18:

    The Pants Alternative

    Sheldon's stage fright stands between him and a coveted award.

  • The Big Bang Theory - The Precious Fragmentation (Season 3 Episode 17)
    Season 3 Episode 17:

    The Precious Fragmentation

    When the guys buy a ring from 'The Lord of the Rings' at a garage sale, the item threatens to tear them apart.

  • The Big Bang Theory - The Excelsior Acquisition (Season 3 Episode 16)
    Season 3 Episode 16:

    The Excelsior Acquisition

    Sheldon ends up in traffic court after getting a ticket because of Penny.

  • The Big Bang Theory - The Large Hadron Collision (Season 3 Episode 15)
    Season 3 Episode 15:

    The Large Hadron Collision

    Leonard must choose who to bring with him when he goes to see the Large Hadron Collider on Valentine's Day.

  • The Big Bang Theory - The Einstein Approximation (Season 3 Episode 14)
    Season 3 Episode 14:

    The Einstein Approximation

    Sheldon tries to figure out the answer to a physics problem by working with Penny.

  • The Big Bang Theory - The Bozeman Reaction (Season 3 Episode 13)
    Season 3 Episode 13:

    The Bozeman Reaction

    After their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

  • The Big Bang Theory - The Psychic Vortex (Season 3 Episode 12)
    Season 3 Episode 12:

    The Psychic Vortex

    Sheldon and Koothrappali attend a university mixer; Leonard discovers that Penny believes in psychics.

  • The Big Bang Theory - The Maternal Congruence (Season 3 Episode 11)
    Season 3 Episode 11:

    The Maternal Congruence

    Leonard is horrified when his mother (Christine Baranski) visits.

  • The Big Bang Theory - The Gorilla Experiment (Season 3 Episode 10)
    Season 3 Episode 10:

    The Gorilla Experiment

    Sheldon tries to help Penny understand Leonard's work; Wolowitz gets jealous when Leonard starts hanging out with his new girlfriend.

  • The Big Bang Theory - The Vengeance Formulation (Season 3 Episode 9)
    Season 3 Episode 9:

    The Vengeance Formulation

    After being humiliated on the radio, Sheldon vows to destroy Kripke; Wolowitz tries to not destroy his new relationship with Bernadette.

  • The Big Bang Theory - The Adhesive Duck Deficiency (Season 3 Episode 8)
    Season 3 Episode 8:

    The Adhesive Duck Deficiency

    Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

  • The Big Bang Theory - The Guitarist Amplification (Season 3 Episode 7)
    Season 3 Episode 7:

    The Guitarist Amplification

    Sheldon tries to make peace when Leonard and Penny get into an argument.

  • The Big Bang Theory - The Cornhusker Vortex (Season 3 Episode 6)
    Season 3 Episode 6:

    The Cornhusker Vortex

    Sheldon teaches Leonard how to understand football; a kite-fighting incident threatens Howard and Raj's friendship.

  • The Big Bang Theory - The Creepy Candy Coating Corollary (Season 3 Episode 5)
    Season 3 Episode 5:

    The Creepy Candy Coating Corollary

    Sheldon seeks revenge on his nemesis, Wil Wheaton; Wolowitz wants Penny to set him up with one of her friends.

  • The Big Bang Theory - The Pirate Solution (Season 3 Episode 4)
    Season 3 Episode 4:

    The Pirate Solution

    Raj faces deportation if he does not find a job; Leonard and Penny deal with Howard as a third wheel.

  • The Big Bang Theory - The Gothowitz Deviation (Season 3 Episode 3)
    Season 3 Episode 3:

    The Gothowitz Deviation

    Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.

  • The Big Bang Theory - The Jiminy Conjecture (Season 3 Episode 2)
    Season 3 Episode 2:

    The Jiminy Conjecture

    Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

  • The Big Bang Theory - The Electric Can Opener Fluctuation (Season 3 Episode 1)
    Season 3 Episode 1:

    The Electric Can Opener Fluctuation

    After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.

  • The Big Bang Theory - Monopolar Expedition (Season 2 Episode 23)
    Season 2 Episode 23:

    Monopolar Expedition

    While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.

  • The Big Bang Theory - The Classified Materials Turbulence (Season 2 Episode 22)
    Season 2 Episode 22:

    The Classified Materials Turbulence

    Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project.

  • The Big Bang Theory - The Vegas Renormalization (Season 2 Episode 21)
    Season 2 Episode 21:

    The Vegas Renormalization

    Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.

  • The Big Bang Theory - The Hofstadter Isotope (Season 2 Episode 20)
    Season 2 Episode 20:

    The Hofstadter Isotope

    Wolowitz and Leonard decide to check out a local bar on Ladies' Night.

  • The Big Bang Theory - The Dead Hooker Juxtaposition (Season 2 Episode 19)
    Season 2 Episode 19:

    The Dead Hooker Juxtaposition

    Penny develops a rivalry with a sexy new female neighbor who threatens her position as queen bee of the building.

  • The Big Bang Theory - The Work Song Nanocluster (Season 2 Episode 18)
    Season 2 Episode 18:

    The Work Song Nanocluster

    Penny's home business turns into a complete nightmare when Sheldon takes over.

  • The Big Bang Theory - The Terminator Decoupling (Season 2 Episode 17)
    Season 2 Episode 17:

    The Terminator Decoupling

    Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is on board the train they are taking to San Francisco.

  • The Big Bang Theory - The Terminator Decoupling (Season 2 Episode 17)
    Season 2 Episode 17:

    The Terminator Decoupling

    Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is on board the train they are taking to San Francisco.

  • The Big Bang Theory - The Cushion Saturation (Season 2 Episode 16)
    Season 2 Episode 16:

    The Cushion Saturation

    A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

  • The Big Bang Theory - The Maternal Capacitance (Season 2 Episode 15)
    Season 2 Episode 15:

    The Maternal Capacitance

    Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).

  • The Big Bang Theory - The Maternal Capacitance (Season 2 Episode 15)
    Season 2 Episode 15:

    The Maternal Capacitance

    Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).

  • The Big Bang Theory - The Financial Permeability (Season 2 Episode 14)
    Season 2 Episode 14:

    The Financial Permeability

    Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

  • The Big Bang Theory - The Friendship Algorithm (Season 2 Episode 13)
    Season 2 Episode 13:

    The Friendship Algorithm

    Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.

  • The Big Bang Theory - The Killer Robot Instability (Season 2 Episode 12)
    Season 2 Episode 12:

    The Killer Robot Instability

    When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.

  • The Big Bang Theory - The Bath Item Gift Hypothesis (Season 2 Episode 11)
    Season 2 Episode 11:

    The Bath Item Gift Hypothesis

    Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

  • The Big Bang Theory - The Vartabedian Conundrum (Season 2 Episode 10)
    Season 2 Episode 10:

    The Vartabedian Conundrum

    Leonard asks Penny for advice when his new relationship starts moving too fast.

  • The Big Bang Theory - The White Asparagus Triangulation (Season 2 Episode 9)
    Season 2 Episode 9:

    The White Asparagus Triangulation

    Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

  • The Big Bang Theory - The Lizard-Spock Expansion (Season 2 Episode 8)
    Season 2 Episode 8:

    The Lizard-Spock Expansion

    Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

  • The Big Bang Theory - The Panty Piñata Polarization (Season 2 Episode 7)
    Season 2 Episode 7:

    The Panty Piñata Polarization

    When Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge.

  • The Big Bang Theory - The Cooper-Nowitzki Theorem (Season 2 Episode 6)
    Season 2 Episode 6:

    The Cooper-Nowitzki Theorem

    Sheldon and the gang are confused when a young grad student is attracted to him.

  • The Big Bang Theory - The Euclid Alternative (Season 2 Episode 5)
    Season 2 Episode 5:

    The Euclid Alternative

    Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

  • The Big Bang Theory - The Griffin Equivalency (Season 2 Episode 4)
    Season 2 Episode 4:

    The Griffin Equivalency

    Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

  • The Big Bang Theory - The Barbarian Sublimation (Season 2 Episode 3)
    Season 2 Episode 3:

    The Barbarian Sublimation

    Sheldon creates a monster when he introduces Penny to online gaming.

  • The Big Bang Theory - The Codpiece Topology (Season 2 Episode 2)
    Season 2 Episode 2:

    The Codpiece Topology

    After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle.

  • The Big Bang Theory - The Bad Fish Paradigm (Season 2 Episode 1)
    Season 2 Episode 1:

    The Bad Fish Paradigm

    Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

  • The Big Bang Theory - The Tangerine Factor (Season 1 Episode 17)
    Season 1 Episode 17:

    The Tangerine Factor

    When Leonard finally works up the courage to ask Penny out on a date, they each turn to Sheldon for advice.

  • The Big Bang Theory - The Peanut Reaction (Season 1 Episode 16)
    Season 1 Episode 16:

    The Peanut Reaction

    Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.

  • The Big Bang Theory - The Pork Chop Indeterminacy (Season 1 Episode 15)
    Season 1 Episode 15:

    The Pork Chop Indeterminacy

    Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.

  • The Big Bang Theory - The Nerdvana Annihilation (Season 1 Episode 14)
    Season 1 Episode 14:

    The Nerdvana Annihilation

    Leonard and the guys buy a time machine prop from a classic movie; Penny tells the guys their obsession with comics and toys is pathetic.

  • The Big Bang Theory - The Bat Jar Conjecture (Season 1 Episode 13)
    Season 1 Episode 13:

    The Bat Jar Conjecture

    When Sheldon tries to prove his mental superiority as they train for the Physics Bowl, the guys kick him off the team and bring his nemesis (Sara Gilbert) aboard.

  • The Big Bang Theory - The Jerusalem Duality (Season 1 Episode 12)
    Season 1 Episode 12:

    The Jerusalem Duality

    Sheldon feels threatened when he meets a 15-year-old physics prodigy, so he and Leonard look for a way to derail the boy's research.

  • The Big Bang Theory - The Pancake Batter Anomaly (Season 1 Episode 11)
    Season 1 Episode 11:

    The Pancake Batter Anomaly

    Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.

  • The Big Bang Theory - The Loobenfeld Decay (Season 1 Episode 10)
    Season 1 Episode 10:

    The Loobenfeld Decay

    Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing, but the elaborate lie Sheldon tells leads to an unexpected result.

  • The Big Bang Theory - The Cooper-Hofstadter Polarization (Season 1 Episode 9)
    Season 1 Episode 9:

    The Cooper-Hofstadter Polarization

    Penny tries to mediate when Sheldon and Leonard disagree on whether to present their joint findings at a physics conference.

  • The Big Bang Theory - The Grasshopper Experiment (Season 1 Episode 8)
    Season 1 Episode 8:

    The Grasshopper Experiment

    On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks, but his date his more interested in Sheldon.

  • The Big Bang Theory - The Dumpling Paradox (Season 1 Episode 7)
    Season 1 Episode 7:

    The Dumpling Paradox

    Penny sleeps on Leonard and Sheldon's couch when Wolowitz seduces her friend and takes over her apartment; in need of a fourth member, the guys ask Penny to join their 'Halo' team.

  • The Big Bang Theory - The Middle Earth Paradigm (Season 1 Episode 6)
    Season 1 Episode 6:

    The Middle Earth Paradigm

    Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.

  • The Big Bang Theory - The Middle Earth Paradigm (Season 1 Episode 6)
    Season 1 Episode 6:

    The Middle Earth Paradigm

    Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.

  • The Big Bang Theory - The Hamburger Postulate (Season 1 Episode 5)
    Season 1 Episode 5:

    The Hamburger Postulate

    Leonard, realizing his pursuit of Penny is fruitless, has an unexpected encounter with a fellow scientist (Sara Gilbert).

  • The Big Bang Theory - The Luminous Fish Effect (Season 1 Episode 4)
    Season 1 Episode 4:

    The Luminous Fish Effect

    Getting fired gives Sheldon the opportunity to explore life beyond physics, but when he spends his time weaving ponchos and acting like a shut-in, Leonard calls Sheldon's mother for assistance.

  • The Big Bang Theory - The Fuzzy Boots Corollary (Season 1 Episode 3)
    Season 1 Episode 3:

    The Fuzzy Boots Corollary

    Unhappy to learn that Penny is seeing someone, Leonard summons the courage to ask another woman on a date.

  • The Big Bang Theory - The Big Bran Hypothesis (Season 1 Episode 2)
    Season 1 Episode 2:

    The Big Bran Hypothesis

    Leonard volunteers to sign for a package, hoping to make a good impression on Penny.

  • The Big Bang Theory - Pilot (Season 1 Episode 1)
    Season 1 Episode 1:

    Pilot

    Leonard is happy to meet new neighbor Penny, but his roommate thinks he is chasing an impossible dream.

  • The Big Bang Theory - The Fermentation Bifurcation (Episode 229)
    Episode 229:

    The Fermentation Bifurcation

    Os garotos encontram com o ex de Penny em um bar. Bernadette passa a tarde com Sheldon.

  • The Big Bang Theory - The Big Bear Precipitation (Episode 228)
    Episode 228:

    The Big Bear Precipitation

  • The Big Bang Theory - The Viewing Party Combustion (Episode 227)
    Episode 227:

    The Viewing Party Combustion

    Durante um encontro do grupo, uma pequena discussão entre Sheldon e Leonard acaba tornado-se um acalorado debate, obrigando o resto do grupo a escolher um ou o outro.

  • The Big Bang Theory - The Solder Excursion Diversion (Episode 226)
    Episode 226:

    The Solder Excursion Diversion

    Sheldon faz uma revelação surpreendente; Koothrappali entrega Leonard e Wolowitz.

  • The Big Bang Theory - The Application Deterioration (Episode 225)
    Episode 225:

    The Application Deterioration

    Leonard, Sheldon e Wolowitz querem dar entrada em um pedido de patente para uma teoria que criaram; Penny, Amy e Bernadette tentam ajudar Koothrappali com conselhos sobre relacionamentos. Ele enfrenta o impasse de decidir se fica com Emily ou Claire.

  • The Big Bang Theory - The Celebration Experimentation (Episode 224)
    Episode 224:

    The Celebration Experimentation

    Pela primeira vez em nove anos, a turma toda decide comemorar o aniversário de Sheldon, que não gosta de festas por conta de um trauma na infância. Seus amigos, então, conseguem levar um convidado muito especial para surpreendê-lo no dia da festa.

  • The Big Bang Theory - The Positive Negative Reaction (Episode 223)
    Episode 223:

    The Positive Negative Reaction

    Toda a turma sai para comemorar a notícia da gravidez de Bernadette em um karaokê. No entanto, a reação de Wolowitz, que acredita que precise ganhar mais dinheiro para sustentar sua família com a chegada de um novo membro, deixa a moça preocupada.

  • The Big Bang Theory - The Valentino Submergence (Episode 222)
    Episode 222:

    The Valentino Submergence

    Sheldon e Amy apresentam um episódio de 'Fun With Flags' em comemoração ao Dia dos Namorados; Leonard e Penny sofrem ao notar que estão envelhecendo; Howard e Bernadette descobrem algo em sua jacuzzi; Raj fica dividido entre Emily e outra mulher.

  • The Big Bang Theory - The Empathy Optimization (Episode 220)
    Episode 220:

    The Empathy Optimization

    Leonard, Penny e o resto da turma tentam passar o final de semana longe de Sheldon.

  • The Big Bang Theory - The Sales Call Sublimination (Episode 219)
    Episode 219:

    The Sales Call Sublimination

    Leonard aceita falar com um psiquiatra em nome de Penny para concretizar uma venda; Sheldon e Koothrappali trabalham juntos numa descoberta astronômica; Wolowitz e Bernadette ficam tristes quando Stuart se muda da casa deles.

  • The Big Bang Theory - The Line Substitution Solution (Episode 218)
    Episode 218:

    The Line Substitution Solution

    Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly (Christine Baranski), comes to town and Penny struggles to make a connection with her..

  • The Big Bang Theory - The Fermentation Bifurcation (Episode 217)
    Episode 217:

    The Fermentation Bifurcation

    The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned.

  • The Big Bang Theory - The Opening Night Excitation (Episode 217)
    Episode 217:

    The Opening Night Excitation

    Após namorarem por mais de cinco anos, Sheldon e Amy passam a noite juntos pela primeira vez; Leonard, Wolowitz e Raj não sabem o que fazer com um ingresso de cinema que está sobrando.

  • The Big Bang Theory - The Viewing Party Combustion (Episode 216)
    Episode 216:

    The Viewing Party Combustion

    During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

  • The Big Bang Theory - The Earworm Reverberation (Episode 216)
    Episode 216:

    The Earworm Reverberation

    Sheldon tenta lembrar-se do nome de uma música que não sai de sua cabeça; Amy convida Dave para jantar; Koothrappali e Wolowitz ficam obcecados por um fã da banda deles.

  • The Big Bang Theory - The Big Bear Precipitation (Episode 215)
    Episode 215:

    The Big Bear Precipitation

    Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

  • The Big Bang Theory - The Platonic Permutation (Episode 215)
    Episode 215:

    The Platonic Permutation

    Amy e Sheldon passam o Dia de Ação de Graças no aquário, apenas como amigos; Penny percebe que Leonard a conhece melhor do que ela pensava.

  • The Big Bang Theory - The Solder Excursion Diversion (Episode 214)
    Episode 214:

    The Solder Excursion Diversion

    Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

  • The Big Bang Theory - The Convergence Convergence (Episode 213)
    Episode 213:

    The Convergence Convergence

    Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

  • The Big Bang Theory - The Mystery Date Observation (Episode 213)
    Episode 213:

    The Mystery Date Observation

    Amy se encontra com um homem misterioso e Sheldon pede a ajuda de Howard e Raj para encontrar uma nova namorada na internet.

  • The Big Bang Theory - The Application Deterioration (Episode 212)
    Episode 212:

    The Application Deterioration

    Leonard, Sheldon, and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

  • The Big Bang Theory - The Spock Resonance (Episode 212)
    Episode 212:

    The Spock Resonance

    Sheldon se esforça para manter as emoções sob controle quando é entrevistado para um documentário sobre Spock; Penny e Leonard fazem uma descoberta surpreendente; Wolowitz e Bernadette enfrentam desavenças.

  • The Big Bang Theory - The Celebration Experimentation (Episode 211)
    Episode 211:

    The Celebration Experimentation

    For the first time in nine years, the gang celebrates Sheldon's birthday -- surprising him with a special guest.

  • The Big Bang Theory - The Helium Insufficiency (Episode 211)
    Episode 211:

    The Helium Insufficiency

    Leonard e Sheldon fazem de tudo para garantir que terão a quantidade necessária de gás hélio para enfrentar um período de escassez que atingirá todo o país; Bernadette e Penny tentam encontrar um novo namorado para Amy em um aplicativo de encontros

  • The Big Bang Theory - The Positive Negative Reaction (Episode 210)
    Episode 210:

    The Positive Negative Reaction

    The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

  • The Big Bang Theory - The Perspiration Implementation (Episode 210)
    Episode 210:

    The Perspiration Implementation

    Barry Kripke manifesta interesse em Amy enquanto dá uma aula de esgrima para os rapazes; Stuart tenta atrair clientes do sexo feminino para a loja e decide contar com a ajuda de Penny, Amy e Bernadette.

  • The Big Bang Theory - The Valentino Submergence (Episode 209)
    Episode 209:

    The Valentino Submergence

    Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

  • The Big Bang Theory - The 2003 Approximation (Episode 209)
    Episode 209:

    The 2003 Approximation

    Sheldon descobre uma mudança inesperada em seu contrato de condomínio e isso faz com que ele decida voltar ao ano de 2003, quando ainda não conhecia nem Leonard, nem Penny. Enquanto isso, Raj e Howard formam uma banda.

  • The Big Bang Theory - The Meemaw Materialization (Episode 208)
    Episode 208:

    The Meemaw Materialization

    Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy; Raj questions his relationship with Emily after meeting someone new.

  • The Big Bang Theory - The Empathy Optimization (Episode 207)
    Episode 207:

    The Empathy Optimization

    After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

  • The Big Bang Theory - The Bachelor Party Corrosion (Episode 207)
    Episode 207:

    The Bachelor Party Corrosion

    Raj e Howard planejam levar Leonard para um lugar secreto e obrigam Sheldon a ir com eles. Lá, Raj e Howard pretendem fazer uma festa de despedida de solteiro atrasada para Leonard; as meninas fazem uma pequena festa para Penny no apartamento dela.

  • The Big Bang Theory - The Sales Call Sublimination (Episode 206)
    Episode 206:

    The Sales Call Sublimination

    Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

  • The Big Bang Theory - The Separation Oscillation (Episode 206)
    Episode 206:

    The Separation Oscillation

    Leonard faz de tudo para acalmar Penny. Enquanto isso, Sheldon está distraído planejando um episódio especial de seu canal no YouTube e Bernadette começa a se sentir culpada com o fato de precisar manter um segredo.

  • The Big Bang Theory - The Matrimonial Momentum (Episode 205)
    Episode 205:

    The Matrimonial Momentum

    Penny se esforça para superar a confissão de Leonard de que beijou outra mulher enquanto eles se preparam para se casar em Las Vegas. Enquanto isso, Sheldon não sabe o que fazer quando Amy decide dar um tempo no relacionamento dos dois.

  • The Big Bang Theory - The Commitment Determination (Episode 204)
    Episode 204:

    The Commitment Determination

    Mesmo com as mudanças dramáticas na sua relação com Amy, Sheldon força Penny e Leonard a marcarem a data do casamento; Leonard e Penny pensam seriamente em fugir para Las Vegas; farta da relação de cinco anos, Amy coloca Sheldon contra a parede.

  • The Big Bang Theory - The Maternal Combustion (Episode 203)
    Episode 203:

    The Maternal Combustion

    Quando as mães de Sheldon e Leonard finalmente se encontram, suas personalidades entram em choque; Howard decide dar uma de macho e enfrentar o desafio de fazer a sua parte no trabalho doméstico, mas, claro, contando com a ajuda dos seus amigos.

  • The Big Bang Theory - The Platonic Permutation (Episode 203)
    Episode 203:

    The Platonic Permutation

    Amy and Sheldon spend Thanksgiving at the aquarium -- as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

  • The Big Bang Theory - The Graduation Transmission (Episode 202)
    Episode 202:

    The Graduation Transmission

    A boa vida de Raj é ameaçada quando ele é excluído do testamento da família; um cancelamento de voo quase impede Leonard de dar um discurso no seu ex-colégio.

  • The Big Bang Theory - The Mystery Date Observation (Episode 202)
    Episode 202:

    The Mystery Date Observation

    Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

  • The Big Bang Theory - The Fortification Implementation (Episode 201)
    Episode 201:

    The Fortification Implementation

    Sheldon e Amy constroem um forte com um cobertor e percebem grandes problemas em seu relacionamento; Howard se encontra com o meio-irmão que ele nunca soube que tinha; Penny é convidada para aparecer no podcast de Wil Wheaton.

  • The Big Bang Theory - The Communication Deterioration (Episode 200)
    Episode 200:

    The Communication Deterioration

    Raj precisa criar uma mensagem para a NASA para o caso de alguma missão encontrar vida alienígena; Penny precisa decidir entre ir a um teste para um filme ou manter seu emprego de vendedora de produtos farmacêuticos.

  • The Big Bang Theory - The Skywalker Incursion (Episode 199)
    Episode 199:

    The Skywalker Incursion

    Sheldon e Leonard recebem um convite para fazer uma palestra na UC Berkeley e decidem desviar do caminho na esperança de encontrar um ídolo; Raj e Amy tentam resolver uma disputa entre Howard e Bernadette com um jogo de pingue-pongue.

  • The Big Bang Theory - The Leftover Thermalization (Episode 197)
    Episode 197:

    The Leftover Thermalization

    Uma revista credita Sheldon erroneamente como o único autor de um trabalho que ele co-escreveu com Leonard e as coisas ficam estranhas; um desmaio da Sra. Wolowitz acaba resultando em um jantar em sua homenagem.

  • The Big Bang Theory - The Colonization Application (Episode 193)
    Episode 193:

    The Colonization Application

    Os problemas surgem quando Amy descobre que Sheldon se inscreveu em uma missão sem volta para colonizar Marte.

  • The Big Bang Theory - The Intimacy Acceleration (Episode 191)
    Episode 191:

    The Intimacy Acceleration

    Para tirar uma onda na cara da turma, Penny e Sheldon inventam um experimento em que, supostamente, os participantes se apaixonariam uns pelos outros. Enquanto isso, Howard e Bernadette enfrentam problemas no aeroporto.

  • The Big Bang Theory - The Comic Book Store Regeneration (Episode 190)
    Episode 190:

    The Comic Book Store Regeneration

    Howard recebe uma notícia chocante enquanto todo mundo se prepara para a reabertura da loja de quadrinhos; Penny tenta ensinar a Sheldon como 'deixar pra lá', mas não consegue seguir seu próprio conselho quando descobre algo irritante sobre Amy.

  • The Big Bang Theory - The Troll Manifestation (Episode 189)
    Episode 189:

    The Troll Manifestation

    Sheldon e Leonard precisam se defender das críticas de um valentão on-line depois de publicarem juntos um artigo; Bernadette, Penny e Amy enfrentam momentos embaraçosos de seus passados durante a noite das meninas.

  • The Big Bang Theory - The Anxiety Optimization (Episode 188)
    Episode 188:

    The Anxiety Optimization

    Sheldon acha que seu estilo de vida confortável está lhe impedindo de progredir cientificamente. Assim, ele pede ajuda aos seus amigos para deixá-lo um trapo.

  • The Big Bang Theory - The Space Probe Disintegration (Episode 187)
    Episode 187:

    The Space Probe Disintegration

    Quando os meninos finalmente concordam em fazer algo que as meninas gostam, Leonard e Sheldon se desentendem.

  • The Big Bang Theory - The Clean Room Infiltration (Episode 185)
    Episode 185:

    The Clean Room Infiltration

    Leonard e Howard pedem ajuda a Raj para lidar com uma emergência no trabalho após se desentenderem por conta de uma quase tragédia na universidade.

  • The Big Bang Theory - The Champagne Reflection (Episode 182)
    Episode 182:

    The Champagne Reflection

    Enquanto Sheldon grava o último episódio de 'Fun with Flags', Bernadette fica chocada quando Penny lhe conta o que seus colegas de trabalho sentem por ela.

  • The Big Bang Theory - The Septum Deviation (Episode 181)
    Episode 181:

    The Septum Deviation

    Leonard passa por uma pequena cirurgia no nariz, o que se torna motivo suficiente para Sheldon ter uma reação exagerada. Enquanto isso, Bernadette e Howard continuam os preparativos para seu casamento.

  • The Big Bang Theory - The Prom Equivalency (Episode 179)
    Episode 179:

    The Prom Equivalency

    Quando os rapazes recriam a noite de formatura no telhado do prédio, Sheldon sente-se pressionado a participar das tradições românticas. Howard teme a possibilidade de Stuart levar sua mãe, mas ele leva a prima com quem Howard perdeu a virgindade.

  • The Big Bang Theory - The Misinterpretation Agitation (Episode 178)
    Episode 178:

    The Misinterpretation Agitation

    Leonard fica horrorizado quando um dos clientes de Penny, um Howard Wolowitz de meia-idade, desenvolve uma obsessão por ela; Bernadette fica irritada quando Amy envia um artigo sobre ela para uma revista local.

  • The Big Bang Theory - The Expedition Approximation (Episode 176)
    Episode 176:

    The Expedition Approximation

    Sheldon e Raj tentam sobreviver ao calor extremo e suportar um ao outro em uma aventura subterrânea em nome da ciência. Enquanto isso, Leonard e Penny estão preocupados com sua situação financeira e seu casamento.

  • The Big Bang Theory - The Focus Attenuation (Episode 175)
    Episode 175:

    The Focus Attenuation

    Amy e Bernadette acusam Penny de ser uma estraga-prazeres depois que ela recebe um e-mail de trabalho durante o fim de semana em Las Vegas. Enquanto isso, os rapazes tentam inventar algo legal, mas apenas encontram novas maneiras de procrastinar.

  • The Big Bang Theory - The Hook-Up Reverberation (Episode 174)
    Episode 174:

    The Hook-Up Reverberation

    A honestidade de Raj sobre seu passado volta para assombrá-lo quando percebe que Emily, sua nova namorada, está tratando Penny friamente. Enquanto isso, os homens do grupo consideram a opção de se tornarem sócios de Stuart na loja de quadrinhos.

  • The Big Bang Theory - The First Pitch Insufficiency (Episode 173)
    Episode 173:

    The First Pitch Insufficiency

    Wolowitz fica apreensivo após receber um pedido da NASA para arremessar a primeira bola em um jogo de beisebol do Los Angeles Angels. Enquanto isso, Leonard e Penny tentam provar que Sheldon está errado quando diz que ele e Amy são um casal melhor.

  • The Big Bang Theory - The Locomotion Interruption (Episode 172)
    Episode 172:

    The Locomotion Interruption

    Leonard e Sheldon são dois cientistas brilhantes, gênios no laboratório, mas sem o menor traquejo social fora dele. Até que surge a bela e desencanada vizinha Penny, que está disposta a lhes ensinar um pouco mais sobre a vida.

  • The Big Bang Theory - The Junior Professor Solution (Episode 171)
    Episode 171:

    The Junior Professor Solution

    Sheldon precisa dar aulas e Howard surpreende a todos quando decide assistir e ser aluno dele; Amy tira vantagem da tensão entre Penny e Bernadette.

  • The Big Bang Theory - The Status Quo Combustion (Episode 170)
    Episode 170:

    The Status Quo Combustion

    Com todas as mudanças que estão acontecendo ao seu redor, Sheldon é obrigado a confrontar um futuro incerto, e avalia uma grande mudança.

  • The Big Bang Theory - The Gorilla Dissolution (Episode 169)
    Episode 169:

    The Gorilla Dissolution

    Um dia terrível no trabalho instiga Penny a avaliar suas escolhas, incluindo seu relacionamento com Leonard. Enquanto isso, Howard e Bernadette se esforçam para cuidar da Sra. Wolowitz.

  • The Big Bang Theory - The Anything Can Happen Recurrence (Episode 168)
    Episode 168:

    The Anything Can Happen Recurrence

    Sheldon tenta ser espontâneo, mas acaba causando um atrito inesperado entre Penny, Amy e Bernadette.

  • The Big Bang Theory - The Proton Transmogrification (Episode 167)
    Episode 167:

    The Proton Transmogrification

    O professor Proton ajuda Sheldon a lidar com uma perda; Leonard participa de uma competição com Penny; Bernadette e Amy preparam um 'Um dia Star Wars' para os rapazes.

  • The Big Bang Theory - The Relationship Diremption (Episode 166)
    Episode 166:

    The Relationship Diremption

    Penny ajuda Sheldon a se recuperar quando ele 'rompe' com a Teoria das Cordas. Enquanto isso, Howard e Bernadette saem com Raj e Emily.

  • The Big Bang Theory - The Indecision Amalgamation (Episode 165)
    Episode 165:

    The Indecision Amalgamation

    Enquanto Penny e Raj encaram difíceis decisões de vida, Amy ajuda Sheldon na missão ainda mais complexa de escolher um novo videogame.

  • The Big Bang Theory - The Mommy Observation (Episode 164)
    Episode 164:

    The Mommy Observation

    Sheldon fica surpreso ao visitar sua mãe em Houston. Enquanto isso, a festa Mistério do Assassinato de Raj provoca tensão entre a gangue.

  • The Big Bang Theory - The Friendship Turbulence (Episode 163)
    Episode 163:

    The Friendship Turbulence

    Howard convida Sheldon para ir a Houston com ele em uma tentativa de estreitar os laços. Enquanto isso, Penny recebe um papel embaraçoso e Raj pede a Amy para ajudá-lo com uma menina.

  • The Big Bang Theory - The Table Polarization (Episode 162)
    Episode 162:

    The Table Polarization

    Leonard compra uma mesa de jantar, o que faz com que Sheldon reavalie as mudanças de sua vida; Wolowitz recebe uma proposta de voltar ao espaço e Bernadette se questiona se quer ou não encorajá-lo a fazer isso.

  • The Big Bang Theory - The Locomotive Manipulation (Episode 161)
    Episode 161:

    The Locomotive Manipulation

    Sheldon e Amy embarcam em uma excursão por vinícolas junto com Howard e Bernardette; Penny e Leonard precisam correr para o veterinário com o cachorro de Raj.

  • The Big Bang Theory - The Convention Conundrum (Episode 160)
    Episode 160:

    The Convention Conundrum

    Quando não conseguem ingressos para a Comic-Con, os rapazes ironizam Sheldon por tentar organizar a própria convenção de quadrinhos. Mas ele acaba tendo uma noite frenética com James Earl Jones. Enquanto isso, as garotas tentam ser maduras.

  • The Big Bang Theory - The Occupation Recalibration (Episode 159)
    Episode 159:

    The Occupation Recalibration

    Sheldon precisa aprender a relaxar ao ser forçado a tirar umas férias; Leonard tenta dar uma força a Penny quando ela se demite do emprego; Bernadette precisa substituir uma das revistas em quadrinhos de Stuart.

  • The Big Bang Theory - The Hesitation Ramification (Episode 158)
    Episode 158:

    The Hesitation Ramification

    Conforme Leonard tenta ajudar Penny com uma decepção, ela faz uma pergunta audaciosas sobre o relacionamento deles; Sheldon quer aprender a ser engraçado.

  • The Big Bang Theory - The Cooper Extraction (Episode 157)
    Episode 157:

    The Cooper Extraction

    Enquanto Sheldon está no Texas, o resto do grupo percebe o quanto ele mudou suas vidas ao decorarem a árvore de Natal do apartamento.

  • The Big Bang Theory - The Discovery Dissipation (Episode 156)
    Episode 156:

    The Discovery Dissipation

    Amy e Leonard tentam ajudar Sheldon a lidar com sua vergonha; Raj fica com Bernadette e Howard por uma semana.

  • The Big Bang Theory - The Thanksgiving Decoupling (Episode 155)
    Episode 155:

    The Thanksgiving Decoupling

    Os planos para o dia de Ação de Graças dos amigos incluem um jantar na casa dos Wolowitz, mas Sheldon não fica nada satisfeito com o lugar escolhido; Leonard e Penny lidam com um erro do passado da moça.

  • The Big Bang Theory - The Itchy Brain Simulation (Episode 154)
    Episode 154:

    The Itchy Brain Simulation

    Leonard tenta evitar que Sheldon tenha uma reação exagerada quando um erro do seu passado vem à tona, mas Sheldon decide puni-lo, fazendo com ele se coloque no seu lugar; Penny confronta a ex-namorada de Raj, Lucy.

  • The Big Bang Theory - The Proton Displacement (Episode 153)
    Episode 153:

    The Proton Displacement

    O peculiar relacionamento entre Sheldon e Amy é testado quando ela arruma um emprego na Caltech, a mesma universidade em que ele trabalha, e os amigos dele se intrometem; uma briga com Bernadette leva Howard a dormir no sofá de Raj.

  • The Big Bang Theory - The Workplace Proximity (Episode 152)
    Episode 152:

    The Workplace Proximity

    Sheldon deverá dosar o tempo que passa com Amy quando ela começa a trabalhar na universidade e o relacionamento dos dois é testado. Enquanto isso, Howard se vê dormindo no sofá de Raj após uma briga com Bernadette.

  • The Big Bang Theory - The Romance Resonance (Episode 151)
    Episode 151:

    The Romance Resonance

    A última descoberta científica de Sheldon o faz se sentir uma fraude e ameaça assombrá-lo para sempre; Howard escreve uma música para Bernadette e faz com que Penny cogite uma aproximação romântica com Leonard.

  • The Big Bang Theory - The Raiders Minimization (Episode 150)
    Episode 150:

    The Raiders Minimization

    Sheldon quer se vingar depois que Amy arruína um de seus filmes favoritos; Leonard encontra uma maneira de conseguir com que Penny faça qualquer coisa; Stuart e Raj se cadastram e fazem seus perfis em sites de namoro.

  • The Big Bang Theory - The Scavenger Vortex (Episode 149)
    Episode 149:

    The Scavenger Vortex

    Para testar as habilidades científicas e intuitivas dos amigos, Raj propõe um jogo de caça ao tesouro, que acaba se transformando numa competição acirrada entre os casais, trazendo à tona o melhor e o pior de cada jogador.

  • The Big Bang Theory - The Deception Verification (Episode 147)
    Episode 147:

    The Deception Verification

    A amizade de Leonard e Sheldon é posta à prova; Leonard volta mais cedo da viagem e se esconde na casa de Penny; Sheldon acha que Penny está traindo Leonard; a relação de Wolowitz com a mãe está ameaçando sua masculinidade.

  • The Big Bang Theory - The Hofstadter Insufficiency (Episode 146)
    Episode 146:

    The Hofstadter Insufficiency

    Sheldon e Penny compartilham segredos íntimos enquanto Leonard está viajando. Mas, quando ele retorna, os sentimentos de Sheldon são destruídos; Wolowitz ajuda a consolar Raj por causa de sua ex-namorada.

  • The Big Bang Theory - The Bon Voyage Reaction (Episode 145)
    Episode 145:

    The Bon Voyage Reaction

    Sheldon e Penny são surpreendidos quando Leonard recebe uma animadora oportunidade de emprego fora do país; Koothrappali pressiona Lucy em seu relacionamento.

  • The Big Bang Theory - The Love Spell Potential (Episode 144)
    Episode 144:

    The Love Spell Potential

    A viagem das meninas a Las Vegas não dá certo e os meninos as convidam para jogar 'Caverna do Dragão'; Raj descobre que Lucy escreveu sobre ele em seu blog; o relacionamento de Sheldon e Amy acaba tomando um rumo inesperado.

  • The Big Bang Theory - The Proton Resurgence (Episode 143)
    Episode 143:

    The Proton Resurgence

    Leonard e Sheldon contratam o professor Proton, apresentador do programa de ciências que assistiam quando eram crianças, para uma apresentação. Raj deixa seu cão com Howard e Bernadette, mas as coisas se complicam quando o animal desaparece.

  • The Big Bang Theory - The Closure Alternative (Episode 142)
    Episode 142:

    The Closure Alternative

    Quando um de seus programas preferidos da TV é cancelado, Sheldon sente-se perdido. Assim, Amy tenta ajudá-lo a vencer sua incapacidade de superação reprogramando seu cérebro.

  • The Big Bang Theory - The Tenure Turbulence (Episode 141)
    Episode 141:

    The Tenure Turbulence

    A competição entre os rapazes aumenta quando surge uma vaga para professor vitalício. Leonard, Sheldon e Raj, então, tentam impressionar os membros do comitê de professores para garantir a estabilidade na universidade.

  • The Big Bang Theory - The Closet Reconfiguration (Episode 140)
    Episode 140:

    The Closet Reconfiguration

    Howard cogita se deve ou não abrir uma carta escrita por seu pai; Penny e Leonard oferecem uma festa para adultos.

  • The Big Bang Theory - The Contractual Obligation Implementation (Episode 139)
    Episode 139:

    The Contractual Obligation Implementation

    Leonard, Sheldon e Wolowitz conversam com alunas do ensino fundamental sobre carreiras relacionadas à ciência; Raj planeja um encontro com Lucy.

  • The Big Bang Theory - The Monster Isolation (Episode 138)
    Episode 138:

    The Monster Isolation

    Raj fica tão consternado depois que Lucy sai correndo no meio do encontro, que jura nunca mais sair de seu apartamento; Penny impressiona Sheldon com suas habilidades de atuação; a gangue vai ao teatro assistir à peça de Penny.

  • The Big Bang Theory - The Tangible Affection Proof (Episode 137)
    Episode 137:

    The Tangible Affection Proof

    Os rapazes procuram presentes perfeitos para o dia dos namorados; Stuart e Raj dão festa das pessoas solitárias na loja de revistas em quadrinhos.

  • The Big Bang Theory - The Spoiler Alert Segmentation (Episode 136)
    Episode 136:

    The Spoiler Alert Segmentation

    Uma briga entre Sheldon e Leonard afeta o acordo de moradia de Penny e Amy, pois Leonard começa a cogitar a ideia de morar com Penny; Wolowitz vai para Vegas com Bernadette e pede a Raj para cuidar da Sra. Wolowitz.

  • The Big Bang Theory - The Cooper/Kripke Inversion (Episode 135)
    Episode 135:

    The Cooper/Kripke Inversion

    Os hobbies nerds de Howard o fazem gastar além da conta; Sheldon fica revoltado por ter que trabalhar com seu inimigo na universidade, Barry Kripke. Para piorar, ele ainda descobre que o trabalho de Barry está bem à frente do seu.

  • The Big Bang Theory - The Bakersfield Expedition (Episode 134)
    Episode 134:

    The Bakersfield Expedition

    O carro de Leonard é roubado quando a gangue faz uma viagem a uma convenção de quadrinhos em Bakersfield vestida como os personagens da série Jornada nas Estrelas.

  • The Big Bang Theory - The Egg Salad Equivalency (Episode 133)
    Episode 133:

    The Egg Salad Equivalency

    Alex convida Leonard para jantar; Sheldon é acusado de assédio sexual na universidade e acaba arrastando Leonard, Raj e Howard para a briga; a ideia de Alex gostar de Leonard faz Penny ficar insegura a respeito de si mesma.

  • The Big Bang Theory - The Santa Simulation (Episode 132)
    Episode 132:

    The Santa Simulation

    Sheldon relutantemente resgata memórias natalinas durante um jogo animado e Raj acompanha as meninas em uma balada.

  • The Big Bang Theory - The Fish Guts Displacement (Episode 131)
    Episode 131:

    The Fish Guts Displacement

    Depois de um tenso jantar com os sogros, Howard tenta se aproximar do pai de Bernadette com uma viagem de pesca; Sheldon visita Amy e a encontra doente. Ele então, resolve bancar o enfermeiro da namorada.

  • The Big Bang Theory - The Parking Spot Escalation (Episode 130)
    Episode 130:

    The Parking Spot Escalation

    Howard compra um carro e a universidade lhe concede a vaga de estacionamento de Sheldon, nunca usada. Sheldon fica tão ressentido com o fato que detona uma guerra que afeta toda a gangue, principalmente Amy e Bernadette.

  • The Big Bang Theory - The 43 Peculiarity (Episode 129)
    Episode 129:

    The 43 Peculiarity

    Raj e Howard tentam descobrir onde Sheldon vai quando desaparece toda tarde às 14h45; o ciúme parece ter se infiltrado no relacionamento de Leonard e Penny, e ele descobre que sua namorada tem um parceiro de estudos na faculdade.

  • The Big Bang Theory - The Habitation Configuration (Episode 128)
    Episode 128:

    The Habitation Configuration

    Bernadette pressiona Wolowitz para que ele saia da casa de sua mãe e vá morar com ela; Amy e Will Wheaton entram em uma disputa acirrada, deixando Sheldon encurralado entre a namorada e o amigo.

  • The Big Bang Theory - The Extract Obliteration (Episode 127)
    Episode 127:

    The Extract Obliteration

    A competição em torno de um jogo online ameaça o relacionamento de Sheldon com Stephen Hawking; Penny se matricula em uma faculdade e mantêm segredo de Leonard, com medo que isso gere expectativas por parte dele.

  • The Big Bang Theory - The Holographic Excitation (Episode 126)
    Episode 126:

    The Holographic Excitation

    A gangue celebra o Dia das Bruxas na loja de revistas em quadrinhos de Stuart. Enquanto isso, a chama entre Leonard e Penny reacende quando ele usa a ciência para seduzi-la.

  • The Big Bang Theory - The Re-Entry Minimization (Episode 125)
    Episode 125:

    The Re-Entry Minimization

    Wolowitz retorna do espaço, porém não tem a recepção que esperava. A noite de jogos torna-se uma guerra dos sexos.

  • The Big Bang Theory - The Higgs Boson Observation (Episode 124)
    Episode 124:

    The Higgs Boson Observation

    Sheldon contrata uma jovem estudante como assistente; Amy fica com ciúme, pede a Penny para ajudá-la a espioná-lo e faz uma descoberta chocante; Wolowitz começa a sentir a pressão de estar no espaço.

  • The Big Bang Theory - The Date Night Variable (Episode 123)
    Episode 123:

    The Date Night Variable

    Raj encara a sua solidão enquanto seus amigos saem com as namoradas; mesmo no espaço, Wolowitz se envolve em uma briga entre sua esposa Bernadette e sua mãe; Leonard tem dúvidas sobre sua relação com Penny.

  • The Big Bang Theory - The Decoupling Fluctuation (Episode 122)
    Episode 122:

    The Decoupling Fluctuation

    Sheldon tenta intervir quando descobre que Penny está pensando em terminar seu relacionamento com Leonard; Howard vira alvo de piadas na estação espacial; Raj e Stuart planejam sair na noite da cidade.

  • The Big Bang Theory - The Rothman Disintegration (Episode 121)
    Episode 121:

    The Rothman Disintegration

    Sheldon e seu grande inimigo Kripke brigam por um escritório de canto; Penny se sente pouco à vontade depois que ganha um presente de Amy.

  • The Big Bang Theory - The Countdown Reflection (Episode 120)
    Episode 120:

    The Countdown Reflection

    A turma tenta ajudar Wolowitz a se casar com Bernadette antes do lançamento espacial.

  • The Big Bang Theory - The Launch Acceleration (Episode 119)
    Episode 119:

    The Launch Acceleration

    Os planos de casamento são ameaçados quando a NASA muda a data da missão de Howard. Leonard diz algo no quarto que surpreende Penny.

  • The Big Bang Theory - The Stag Convergence (Episode 118)
    Episode 118:

    The Stag Convergence

    Leonard, Sheldon e Koothrappali fazem uma festa sofisticada de despedida de solteiro para Wolowitz, na qual, algumas histórias sobre o colorido futuro sexual dos noivos, são acidentalmente revelados.

  • The Big Bang Theory - The Hawking Excitation (Episode 117)
    Episode 117:

    The Hawking Excitation

    Quando Wolowitz trabalha com Stephen Hawking, Sheldon está determinado a conhecer o famoso cientista.

  • The Big Bang Theory - The Transporter Malfunction (Episode 116)
    Episode 116:

    The Transporter Malfunction

    Quando Penny compra uma peça de coleção de Star Trek para seus vizinhos, Sheldon é assombrado pelo Sr. Spock.

  • The Big Bang Theory - The Weekend Vortex (Episode 115)
    Episode 115:

    The Weekend Vortex

    Sheldon planeja uma maratona de videogames com os rapazes ao invés de participar de uma festa de aniversário para a tia de Amy.

  • The Big Bang Theory - The Werewolf Transformation (Episode 114)
    Episode 114:

    The Werewolf Transformation

    A rotina de Sheldon vira de cabeça para baixo quando seu barbeiro fica doente; Wolowitz questiona sua decisão de ir para o espaço.

  • The Big Bang Theory - The Vacation Solution (Episode 113)
    Episode 113:

    The Vacation Solution

    Sheldon volta a trabalhar com Amy em seu laboratório quando a universidade obriga que ele tire férias; Bernadette pede para Howard assinar um acordo pré-nupcial.

  • The Big Bang Theory - The Friendship Contraction (Episode 112)
    Episode 112:

    The Friendship Contraction

    Leonard começa a reconsiderar sua amizade com Sheldon. Wolowitz tenta escolher seu apelido de astronauta.

  • The Big Bang Theory - The Beta Test Initiation (Episode 111)
    Episode 111:

    The Beta Test Initiation

    Para fazer um teste, Penny e Leonard começam a sair de novo; Raj tem um relacionamento estranho com sua nova assistente telefônica virtual.

  • The Big Bang Theory - The Recombination Hypothesis (Episode 110)
    Episode 110:

    The Recombination Hypothesis

    Neste episódio de número 100, Leonard decide convidar Penny para sair e os dois decidem dar outra chance ao relacionamento. O casal discute durante o jantar, mas acaba dormindo junto.

  • The Big Bang Theory - The Shiny Trinket Maneuver (Episode 109)
    Episode 109:

    The Shiny Trinket Maneuver

    Amy irrita-se com Sheldon quando ele não se importa com sua mais recente conquista profissional; Howard enfrenta a aversão de Bernadette à crianças.

  • The Big Bang Theory - The Speckerman Recurrence (Episode 108)
    Episode 108:

    The Speckerman Recurrence

    Leonard confronta o valentão que atormentou sua vida no colégio e Penny percebe que já atormentou pessoas o suficiente no passado.

  • The Big Bang Theory - The Flaming Spittoon Acquisition (Episode 107)
    Episode 107:

    The Flaming Spittoon Acquisition

    Sheldon fica com ciúme quando Stuart (Kevin Sussman), da loja de revistas em quadrinhos, convida Amy para sair.

  • The Big Bang Theory - The Ornithophobia Diffusion (Episode 106)
    Episode 106:

    The Ornithophobia Diffusion

    Leonard e Penny tentam passar tempo juntos sem ninguém por perto, enquanto Sheldon encara seu medo de pássaros.

  • The Big Bang Theory - The Bath Item Gift Hypothesis (Episode 105)
    Episode 105:

    The Bath Item Gift Hypothesis

    Penny começa a namorar o amigo bonitão de Leonard; Leonard e seus amigos são torturados pela obsessão de Sheldon com as etiquetas de presentar.

  • The Big Bang Theory - The Isolation Permutation (Episode 104)
    Episode 104:

    The Isolation Permutation

    Amy fica magoada ao saber que Penny e Bernadette saíram para comprar vestidos de madrinha da noiva sem avisá-la.

  • The Big Bang Theory - The Good Guy Fluctuation (Episode 103)
    Episode 103:

    The Good Guy Fluctuation

    Uma atraente artista de revistas em quadrinhos coloca a relação de Leonard e Priya à prova; Sheldon tenta assustar seus amigos.

  • The Big Bang Theory - The Hofstadter Isotope (Episode 102)
    Episode 102:

    The Hofstadter Isotope

    Leonard fica arrasado quando o nerd da loja de revistas em quadrinhos paquera Penny. Leonard não acredita que Penny namoraria um 'deles', a menos que seja ele.

  • The Big Bang Theory - The Work Song Nanocluster (Episode 101)
    Episode 101:

    The Work Song Nanocluster

    O negócio de acessórios para cabelo de Penny se transforma em um pesadelo quando um Sheldon hiperativo assume o controle.

  • The Big Bang Theory - The Dead Hooker Juxtaposition (Episode 100)
    Episode 100:

    The Dead Hooker Juxtaposition

    Penny inicia uma rivalidade com a nova vizinha sexy que ameaça sua posição de abelha-rainha do prédio.

  • The Big Bang Theory - The Cushion Saturation (Episode 99)
    Episode 99:

    The Cushion Saturation

    Um jogo de paintball leva a uma disputa quando Penny, acidentalmente, dispara uma pistola de tinta em uma das almofadas de Sheldon. O resultado do acidente é uma mancha que não pode ser removida, o que motiva Sheldon a querer vingança.

  • The Big Bang Theory - The Maternal Capacitance (Episode 98)
    Episode 98:

    The Maternal Capacitance

    A sessão vai começar. Quando a mãe de Leonard, uma famosa neurocientista, chega para passar alguns dias com seu filho, ele, Penny, Howard e Raj têm seus maiores temores expostos para o mundo. Apenas Sheldon está gostando da visita.

  • The Big Bang Theory - The Rhinitis Revelation (Episode 97)
    Episode 97:

    The Rhinitis Revelation

    Sheldon compete com todos os seus amigos pela atenção de sua mãe enquanto ela está visitando.

  • The Big Bang Theory - The Financial Permeability (Episode 96)
    Episode 96:

    The Financial Permeability

    A solução de Sheldon para o problema financeiro de Penny causa um confronto entre Leonard e o ex-namorado de Penny.

  • The Big Bang Theory - The Friendship Algorithm (Episode 95)
    Episode 95:

    The Friendship Algorithm

    Sheldon desenvolve um procedimento científico para fazer amigos quando descobre que Kripke tem controle de um novo supercomputador na universidade.

  • The Big Bang Theory - The Vartabedian Conundrum (Episode 94)
    Episode 94:

    The Vartabedian Conundrum

    Leonard pede conselho a Penny sobre seu novo relacionamento com Stephanie, que avança mais rápido do que ele gostaria.

  • The Big Bang Theory - The Killer Robot Instability (Episode 93)
    Episode 93:

    The Killer Robot Instability

    Quando um comentário de Penny sobre a vida amorosa de Wolowitz lhe deixa triste, seus amigos perdem o companheiro mais importante para na competição de luta de robôs..

  • The Big Bang Theory - The White Asparagus Triangulation (Episode 92)
    Episode 92:

    The White Asparagus Triangulation

    Sheldon está feliz por Leonard ter finalmente encontrado uma namorada que preenche todos os requisitos dos seus altos padrões.

  • The Big Bang Theory - The Cooper-Nowitzki Theorem (Episode 91)
    Episode 91:

    The Cooper-Nowitzki Theorem

    Sheldon finalmente começa a receber o reconhecimento que sempre mereceu. Ou é isso que ele pensa. A estudante Ramona Nowitzki fica encantada com o intelecto do Doutor Cooper e está disposta a fazer tudo que ele mandar apenas para ficar a seu lado.

  • The Big Bang Theory - The Euclid Alternative (Episode 90)
    Episode 90:

    The Euclid Alternative

    Leonard e seus amigos organizam uma intervenção para obrigar Sheldon a enfrentar o seu medo de dirigir.

  • The Big Bang Theory - The Russian Rocket Reaction (Episode 89)
    Episode 89:

    The Russian Rocket Reaction

    Sheldon e Leonard vão à festa de Wil Wheaton onde Brent Spiner, ator que fez o papel de Data na série Jornada nas Estrelas, também está presente.

  • The Big Bang Theory - The Tangerine Factor (Episode 88)
    Episode 88:

    The Tangerine Factor

    Leonard finalmente tem coragem de convidar Penny para sair e ambos pedem a Sheldon conselhos sobre relacionamento.

  • The Big Bang Theory - The Bad Fish Paradigm (Episode 87)
    Episode 87:

    The Bad Fish Paradigm

    Penny se abre com o relutante Sheldon depois de um primeiro encontro ruim com Leonard, colocando-o na desconfortável posição de ter que guardar um segredo.

  • The Big Bang Theory - The Peanut Reaction (Episode 86)
    Episode 86:

    The Peanut Reaction

    Penny descobre que Leonard não comemorar seus aniversários e então planeja uma festa surpresa; Sheldon inesperadamente começa a viver uma de suas maiores fantasias em uma loja de eletrônicos.

  • The Big Bang Theory - The Jerusalem Duality (Episode 85)
    Episode 85:

    The Jerusalem Duality

    Quando Sheldon conhece Dennis, um físico de quinze anos de idade e que é claramente muito mais brilhante do que ele, sua confiança fica tão abalada que Leonard concorda em ajudá-lo a descreditar a pesquisa do adolescente precoce.

  • The Big Bang Theory - The Wiggly Finger Catalyst (Episode 84)
    Episode 84:

    The Wiggly Finger Catalyst

    Raj fica chateado de ser o único dos quatro amigos que não está em nenhum relacionamento e Penny decide apresentá-lo a Emily.

  • The Big Bang Theory - The Loobenfeld Decay (Episode 83)
    Episode 83:

    The Loobenfeld Decay

    Leonard e Sheldon não querem ir à apresentação de Penny após ouvirem-na cantando, mas a mentira elaborada que Sheldon conta tem um resultado inesperado.

  • The Big Bang Theory - The Grasshopper Experiment (Episode 82)
    Episode 82:

    The Grasshopper Experiment

    Em um encontro às cegas, Koothrappali descobre que ele pode conversar com o sexo oposto depois de alguns drinques, mas sua namorada tem interesse em Sheldon.

  • The Big Bang Theory - The Middle Earth Paradigm (Episode 81)
    Episode 81:

    The Middle Earth Paradigm

    Penny organiza uma festa de Halloween e testa as habilidades sociais de Leonard, Sheldon, Wolowitz e Koothrappali.

  • The Big Bang Theory - The Dumpling Paradox (Episode 80)
    Episode 80:

    The Dumpling Paradox

    Penny dorme no sofá Leonard e Sheldon quando Wolowitz seduz sua amiga e toma seu apartamento. Tendo necessidade de um quarto membro, os rapazes pedem à Penny para participar da sua equipe Halo.

  • The Big Bang Theory - The Hamburger Postulate (Episode 79)
    Episode 79:

    The Hamburger Postulate

    Leonard percebe que sua atração por Penny não tem futuro e se encontra, inesperadamente, com uma colega cientista.

  • The Big Bang Theory - The Luminous Fish Effect (Episode 78)
    Episode 78:

    The Luminous Fish Effect

    Ser demitido dá a Sheldon a oportunidade de explorar a vida além da física, mas quando ele passa seu tempo tricotando e agindo como um desligado, Leonard pede ajuda da mãe dele.

  • The Big Bang Theory - The Griffin Equivalency (Episode 77)
    Episode 77:

    The Griffin Equivalency

    Cheio de confiança após ser nomeado um dos 'Trinta para observar abaixo dos Trinta' da revista People, Raj dá em cima de Penny e torna-se incrivelmente arrogante.

  • The Big Bang Theory - The Fuzzy Boots Corollary (Episode 76)
    Episode 76:

    The Fuzzy Boots Corollary

    Leonard se irrita quando descobre que Penny está namorando com outra pessoa. Como resultado, é encorajado pelos amigos e cientistas e toma coragem para namorar outra mulher.

  • The Big Bang Theory - The Big Bran Hypothesis (Episode 75)
    Episode 75:

    The Big Bran Hypothesis

    Sheldon e Leonard vão até Penny para deixar um pacote e Sheldon fica surpreso com a bagunça que vê. Mais tarde, quando Leonard está dormindo, ele volta e vai limpar e organizar o apartamento, mas Penny não fica satisfeita com o que ele fez.

  • The Big Bang Theory - Pilot (Episode 74)
    Episode 74:

    Pilot

    Leonard está feliz em conhecer Penny, sua nova vizinha, mas seu companheiro de quarto acredita que ele está perseguindo um sonho impossível.

  • The Big Bang Theory - The Pulled Groin Extrapolation (Episode 73)
    Episode 73:

    The Pulled Groin Extrapolation

    Amy e Leonard tentam se conhecer melhor; Bernadette, Howard e a sra. Wolowitz passam um fim de semana juntos.

  • The Big Bang Theory - The Infestation Hypothesis (Episode 72)
    Episode 72:

    The Infestation Hypothesis

    Amy fica no meio do fogo cruzado quando Penny e Sheldon brigam; Leonard tenta apimentar seu namoro à distância.

  • The Big Bang Theory - The Skank Reflex Analysis (Episode 71)
    Episode 71:

    The Skank Reflex Analysis

    Penny fica preocupada, pois acha que arruinou o relacionamento com seus amigos; Sheldon assume o time de paintball.

  • The Big Bang Theory - The Wildebeest Implementation (Episode 70)
    Episode 70:

    The Wildebeest Implementation

    Raj tenta curar sua ansiedade em falar com as mulheres, enquanto Penny usa Bernadette para espionar Leonard e sua namorada.

  • The Big Bang Theory - The Agreement Dissection (Episode 69)
    Episode 69:

    The Agreement Dissection

    Priya usa seus conhecimentos legais para analisar detalhadamente o acordo com o seu companheiro de quarto, a fim de colocar Sheldon em seu lugar. Enquanto isso, as moças levam Sheldon para um baile.

  • The Big Bang Theory - The Herb Garden Germination (Episode 68)
    Episode 68:

    The Herb Garden Germination

    Amy e Sheldon espalham uma fofoca como parte de um teste; Howard decide dar um grande passo em seu relacionamento com Bernadette.

  • The Big Bang Theory - The Zarnecki Incursion (Episode 67)
    Episode 67:

    The Zarnecki Incursion

    Sheldon está totalmente perturbado, até mesmo ao ponto de chamar a polícia e tentar chamar o FBI, após alguém ter invadido sua conta do 'World of Warcraft' e roubado todas as suas informações além de seus bens virtuais.

  • The Big Bang Theory - The Prestidigitation Approximation (Episode 66)
    Episode 66:

    The Prestidigitation Approximation

    Leonard deve escolher entre Penny e sua nova namorada, Priya; o truque de mágica de Howard enlouquece Sheldon.

  • The Big Bang Theory - The Toast Derivation (Episode 65)
    Episode 65:

    The Toast Derivation

    Sheldon faz novos amigos quando o grupo começa a sair mais frequentemente com Raj. Ele percebe que, na verdade, é Leonard quem é o centro das atenções do seu grupo social e não ele.

  • The Big Bang Theory - The Cohabitation Formulation (Episode 64)
    Episode 64:

    The Cohabitation Formulation

    Wolowitz quer aprofundar seu nível de relacionamento com Bernadette; Leonard reinicia seu relacionamento com a irmã de Raj.

  • The Big Bang Theory - The Benefactor Factor (Episode 63)
    Episode 63:

    The Benefactor Factor

    Um rico benfeitor na universidade faz com que Leonard considere até onde ele está disposto a ir em nome da ciência.

  • The Big Bang Theory - The Thespian Catalyst (Episode 62)
    Episode 62:

    The Thespian Catalyst

    Sheldon tem aulas de atuação com Penny na esperança de se tornar um professor melhor. Koothrappali sonha com a namorada de seu amigo.

  • The Big Bang Theory - The Love Car Displacement (Episode 61)
    Episode 61:

    The Love Car Displacement

    Bernadette enconta um ex-namorado em uma conferência científica e as tensões aumentam. Ameaçado pelo ex-namorado de Bernadette, Wolowitz tem uma discussão com ela e provoca um caos.

  • The Big Bang Theory - The Bus Pants Utilization (Episode 60)
    Episode 60:

    The Bus Pants Utilization

    A ideia de Leonard de um aplicativo para celulares destrói sua amizade com Sheldon porque eles lutam pelo controle do projeto.

  • The Big Bang Theory - The Lizard-Spock Expansion (Episode 59)
    Episode 59:

    The Lizard-Spock Expansion

    A amizade de Leonard e Howard está por um fio. Tudo porque a garota em que Howard está interessado acaba ficando com Leonard. Howard acredita que Leonard traiu sua confiança e não será fácil recuperar sua amizade.

  • The Big Bang Theory - The Barbarian Sublimation (Episode 58)
    Episode 58:

    The Barbarian Sublimation

    Penny fica viciada em um jogo na internet baseado no mundo de Conan, o Bárbaro, e incomoda Sheldon para pedir conselhos.

  • The Big Bang Theory - The Codpiece Topology (Episode 57)
    Episode 57:

    The Codpiece Topology

    Depois de ver Penny com um homem mais atraente, Leonard reinicia seu relacionamento com Leslie Winkle, a pior inimiga de Sheldon.

  • The Big Bang Theory - The Roommate Transmogrification (Episode 56)
    Episode 56:

    The Roommate Transmogrification

    Bernadette recebe seu doutorado, inspirando os rapazes a implicarem com Wolowitz por ele não ter um doutorado. Raj torna-se colega de quarto de Sheldon.

  • The Big Bang Theory - The Engagement Reaction (Episode 55)
    Episode 55:

    The Engagement Reaction

    Howard, finalmente, conta para sua mãe sobre o seu noivado com Bernadette. Infelizmente, por causa dessa notícia, sua mãe vai parar em um hospital.

  • The Big Bang Theory - The Justice League Recombination (Episode 54)
    Episode 54:

    The Justice League Recombination

    Os amigos participam de um concurso de fantasias com o namorado de Penny.

  • The Big Bang Theory - The Alien Parasite Hypothesis (Episode 53)
    Episode 53:

    The Alien Parasite Hypothesis

    Amy descobre que sente algo pelo ex-namorado de Penny; Koothrappali e Wolowitz tentam provar quem seria o melhor super-herói.

  • The Big Bang Theory - The Boyfriend Complexity (Episode 52)
    Episode 52:

    The Boyfriend Complexity

    Penny pede para Leonard mentir para seu pai; Howard, Raj e Bernadette passam uma noite inteira com um projeto de astronomia.

  • The Big Bang Theory - The 21-Second Excitation (Episode 51)
    Episode 51:

    The 21-Second Excitation

    Os rapazes acampam para ver um filme; Penny e Bernadette convidam Amy para uma festa só para garotas.

  • The Big Bang Theory - The Apology Insufficiency (Episode 50)
    Episode 50:

    The Apology Insufficiency

    Leonard acredita que seu problema com mulheres é por sua falta de auto-confiança e jura que será mais seguro com mulheres atraentes. Enquanto isso, Wolowitz recebe uma chamada do FBI.

  • The Big Bang Theory - The Irish Pub Formulation (Episode 49)
    Episode 49:

    The Irish Pub Formulation

    Um segredo embaraçoso de Wolowitz acaba vindo à tona quando ele está tentando reconquistar sua ex-namorada.

  • The Big Bang Theory - The Desperation Emanation (Episode 48)
    Episode 48:

    The Desperation Emanation

    Leonard percebe que é o único do grupo de amigos que não tem uma namorada; Sheldon quer acabar o relacionamento com sua namorada.

  • The Big Bang Theory - The Hot Troll Deviation (Episode 47)
    Episode 47:

    The Hot Troll Deviation

    Um segredo embaraçoso de Wolowitz vem à tona quando ele tenta reatar com Bernadette, sua ex-namorada; Enquanto isso, Sheldon e Raj têm uma pequena guerra no trabalho.

  • The Big Bang Theory - The Zazzy Substitution (Episode 46)
    Episode 46:

    The Zazzy Substitution

    Os rapazes ficam preocupados quando Sheldon procura uma alternativa para a companhia humana após ele e Amy terminarem. As coisas pioram e Leonard decide chamar a mãe de Sheldon para visitá-lo.

  • The Big Bang Theory - The Cruciferous Vegetable Amplification (Episode 45)
    Episode 45:

    The Cruciferous Vegetable Amplification

    Sheldon se dá conta que ele não viverá o suficiente para transferir sua consciência para o corpo de um robô e tenta prolongar o tempo de sua vida.

  • The Big Bang Theory - The Robotic Manipulation (Episode 44)
    Episode 44:

    The Robotic Manipulation

    Penny vai junto ao primeiro encontro de Sheldon com uma mulher que ele tem se comunicado por meses através de mensagem de texto. Enquanto isso, Wolowitz encontra novo uso para um braço robótico.

  • The Big Bang Theory - The Pork Chop Indeterminacy (Episode 43)
    Episode 43:

    The Pork Chop Indeterminacy

    Leonard tem uma ideia para eliminar seus rivais quando ele, Wolowitz e Koothrappali se apaixonam pela irmã gêmea de Sheldon. Porém seu plano dá errado quando Sheldon decide escolher quem namora sua irmã.

  • The Big Bang Theory - The Cooper-Hofstadter Polarization (Episode 41)
    Episode 41:

    The Cooper-Hofstadter Polarization

    Penny tenta mediar quando Sheldon e Leonard discordam sobre apresentar em conjunto as suas conclusões em uma conferência de física.

  • The Big Bang Theory - The Pancake Batter Anomaly (Episode 40)
    Episode 40:

    The Pancake Batter Anomaly

    Leonard e os garotos tentam fugir de Sheldon quando ele está doente, deixando Penny responsável para cuidar da saúde dele.

  • The Big Bang Theory - The Classified Materials Turbulence (Episode 39)
    Episode 39:

    The Classified Materials Turbulence

    Penny faz uma revelação surpreendente sobre Leonard durante seu encontro com Stuart; Wolowitz descobre um erro em seu projeto da NASA.

  • The Big Bang Theory - The Vegas Renormalization (Episode 38)
    Episode 38:

    The Vegas Renormalization

    Koothrappali e Leonard levam Wolowitz a Las Vegas; Sheldon não consegue entrar no seu apartamento e é forçado a ficar com Penny.

  • The Big Bang Theory - The Panty Piñata Polarization (Episode 37)
    Episode 37:

    The Panty Piñata Polarization

    Howard e Raj têm um novo objetivo e não medem esforços para localizar a casa do programa America.s Next Top Model. Eles acham que podem conquistar as participantes que forem eliminadas do show, contando com a fragilidade emocional das belas mulheres.

  • The Big Bang Theory - The Lunar Excitation (Episode 36)
    Episode 36:

    The Lunar Excitation

    Raj e Howard encontram a mulher perfeita para Sheldon na internet e Penny seduz Leonard enquanto está bêbada, mas se arrepende no dia seguinte. Será que Leonard vai se arrepender também?

  • The Big Bang Theory - The Staircase Implementation (Episode 35)
    Episode 35:

    The Staircase Implementation

    Este episódio mostra o início da amizade de Sheldon e Leonard há sete anos e explica o arranjo de moradia, além de como Sheldon salvou a vida de seus amigos.

  • The Big Bang Theory - The Plimpton Stimulation (Episode 34)
    Episode 34:

    The Plimpton Stimulation

    Sheldon conhece uma famosa cientista online e a convida para o seu apartamento. Ela paquera Leonard e vai ao seu quarto. Penny descobre tudo e questiona Leonard. Enquanto isso, Sheldon fica irritado porque Leonard se mostra interessado em sua amiga.

  • The Big Bang Theory - The Spaghetti Catalyst (Episode 33)
    Episode 33:

    The Spaghetti Catalyst

    Sheldon tenta esconder de Leonard sua amizade com Penny, mas logo sua vida dupla é revelada. Penny e Leonard vão tentar manter a amizade deles com Sheldon sem mágoas.

  • The Big Bang Theory - The Wheaton Recurrence (Episode 32)
    Episode 32:

    The Wheaton Recurrence

    Uma discussão ameaça o relacionamento de Penny e Leonard; Sheldon e Will Wheator se enfrentam mais uma vez.

  • The Big Bang Theory - The Pants Alternative (Episode 31)
    Episode 31:

    The Pants Alternative

    Sheldon foi premiado pela universidade, mas está com medo de receber o prêmio na cerimônia porque sabe que terá que fazer um discurso.

  • The Big Bang Theory - The Precious Fragmentation (Episode 30)
    Episode 30:

    The Precious Fragmentation

    Quando os amigos compram um anel supostamente usado no filme 'O Senhor dos Anéis', o objeto ameaça separá-los.

  • The Big Bang Theory - The Excelsior Acquisition (Episode 29)
    Episode 29:

    The Excelsior Acquisition

    Sheldon é convocado para comparecer à corte por não ter parado no sinal vermelho quando levava Penny ao hospital em um episódio anterior. Ele acaba irritando o juiz e é preso.

  • The Big Bang Theory - The Large Hadron Collision (Episode 28)
    Episode 28:

    The Large Hadron Collision

    Leonard precisa escolher quem vai acompanhá-lo à apresentação de 'Large Hadron Collider' no dia dos namorados.

  • The Big Bang Theory - The Einstein Approximation (Episode 27)
    Episode 27:

    The Einstein Approximation

    Sheldon está com 'bloqueio teórico' e se inspira em Albert Einstein, começando a trabalhar no restaurante Cheesecake Factory para estimular sua criatividade.

  • The Big Bang Theory - The Bozeman Reaction (Episode 26)
    Episode 26:

    The Bozeman Reaction

    O apartamento de Leonard e Sheldon é arrombado e os amigos tentam criar um sistema de segurança de ponta.

  • The Big Bang Theory - The Psychic Vortex (Episode 25)
    Episode 25:

    The Psychic Vortex

    Sheldon e Koothrappali participam de uma reunião universitária; Leonard descobre que Penny acredita em espiritualismo.

  • The Big Bang Theory - The Terminator Decoupling (Episode 24)
    Episode 24:

    The Terminator Decoupling

    Leonard, Sheldon e Wolowitz ficam empolgados ao saber que uma atriz famosa de ficção científica está a bordo do trem que estão tomando para San Francisco.

  • The Big Bang Theory - The Maternal Congruence (Episode 23)
    Episode 23:

    The Maternal Congruence

    Leonard fica aborrecido quando sua mãe aparece de surpresa. Ele se irrita ainda mais ao descobrir que Sheldon sabia da visita.

  • The Big Bang Theory - The Gorilla Experiment (Episode 22)
    Episode 22:

    The Gorilla Experiment

    Sheldon tenta ajudar Penny a entender o trabalho de Leonard; Wolowitz sente ciúmes quando Leonard sai com a nova namorada.

  • The Big Bang Theory - The Guitarist Amplification (Episode 21)
    Episode 21:

    The Guitarist Amplification

    Sheldon considera inconvenientes as discussões de Leonard e Penny sobre os amigos dela passando a noite e revela que seus pais brigavam muito quando ele era criança e isso o irrita.

  • The Big Bang Theory - The Vengeance Formulation (Episode 20)
    Episode 20:

    The Vengeance Formulation

    Após ser humilhado no rádio, Sheldon jura destruir Kripke; Wolowitz tenta não arruinar seu relacionamento com Bernadette.

  • The Big Bang Theory - The Creepy Candy Coating Corollary (Episode 19)
    Episode 19:

    The Creepy Candy Coating Corollary

    Sheldon quer se vingar de seu inimigo Wil Wheaton; Wolowitz quer que Penny o apresente a uma de suas amigas.

  • The Big Bang Theory - The Adhesive Duck Deficiency (Episode 18)
    Episode 18:

    The Adhesive Duck Deficiency

    Penny se vê obrigada a confiar em Sheldon quando se machuca enquanto Howard, Leonard e Raj estão fora.

  • The Big Bang Theory - The Electric Can Opener Fluctuation (Episode 17)
    Episode 17:

    The Electric Can Opener Fluctuation

    Depois de manipular a informação da expedição ao Ártico de Sheldon, os rapazes o seguem até o Texas, ameaçando a oportunidade de Leonard e Penny de ficarem juntos.

  • The Big Bang Theory - The Monopolar Expedition (Episode 16)
    Episode 16:

    The Monopolar Expedition

    Equanto Leonard se prepara para uma expedição científica de três meses, ele e Penny reavaliam seus sentimentos.

  • The Big Bang Theory - The Nerdvana Annihilation (Episode 15)
    Episode 15:

    The Nerdvana Annihilation

    Leonard e os rapazes compram uma máquina do tempo de um filme clássico; Penny diz a seus amigos que sua obsessão pelos gibis e brinquedos é patética.

  • The Big Bang Theory - The Bat Jar Conjecture (Episode 14)
    Episode 14:

    The Bat Jar Conjecture

    Quando Sheldon tenta demonstrar sua superioridade mental enquanto eles se preparam para o Torneio de Físicos, os rapazes o tiram a equipe e colocam sua inimiga em seu lugar.

  • The Big Bang Theory - The Cornhusker Vortex (Episode 13)
    Episode 13:

    The Cornhusker Vortex

    Sheldon tenta fazer Leonard entender de futebol americano; um incidente de pipas ameaça a amizade de Howard e Raj.

  • The Big Bang Theory - The Pirate Solution (Episode 12)
    Episode 12:

    The Pirate Solution

    Raj pode ser deportado se não encontrar um emprego; Howard sai com Leonard e Penny, mas eles gostariam de ficar a sós.

  • The Big Bang Theory - The Gothowitz Deviation (Episode 11)
    Episode 11:

    The Gothowitz Deviation

    Howard e Raj vão a um bar gótico para conhecer mulheres; Sheldon tenta mudar o comportamento de Penny usando chocolates.

  • The Big Bang Theory - The Jiminy Conjecture (Episode 10)
    Episode 10:

    The Jiminy Conjecture

    Leonard e Penny não estão à vontade após um envolvimento romântico e decidem ser amigos, mas têm dificuldades em controlar a atração mútua.

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