The class awaits naming of the valedictorian.
The graduating classmates say goodbye.
Billy discovers T.J.'s musical talent.
Darlene arranges a pricey dinner for the class.
Billy's fictional student wins a scholarship.
A team member's name is left off a trophy.
T.J. refuses Aristotle's invitation to the prom.
Billy helps Viki find her birth mother (June Gable).
Alex lies to his friends about him and Simone.
Arvid hides a chimpanzee in the classroom.
Billy and Bernadette take dancing lessons.
Jasper's parents (Denice Kumagai, Tzi Ma) hire Sarah as his sitter.
The class tour bus breaks down at a truck stop.
Robbery-victim Billy assigns a paper on gun control.
A fellow student (Jason Kristofer) threatens Arvid with a gun.
Billy fakes a heart attack to protest health insurance.
Eric becomes stranded in Paris; Billy tries to teach French.
Arvid dates Viki and offers romantic advice.
To keep perfect attendance, Arvid infects all.
Alan cheats to become class valedictorian.
Billy turns to the personal ads for a date.
The students wonder about Charlie's replacement.
Charlie and Eric vie for a night-school teacher.
Aristotle videotapes a mob-family wedding.
Aristotle tries to help Charlie's acting career.
Alan falls for a model.
Arvid promises three girls each will be dance queen.
Simone dates Dennis after he saves her life.
A new student (Jonathan Ke Quan) rejects the Academic Olympics.
The class worries about making commitments.
Obstacles face Charlie's production of 'Hair.'
The students save the production of 'Hair.'
Alan tries to make up for remarks to the class.
Charlie advises Alex not to mislead a girl.
An assignment makes Eric a fashion designer.
T.J. challenges Dennis to a fight.
The class learns a star athlete is illiterate.
T.J. makes a costly deal to get into the IHP.
Arvid has questions about his nasal surgery.
Charlie teaches the class about mourning.
Arvid replaces T.J. as Alex's dance partner.
A science project may go on the space shuttle.
Dennis takes credit for the shuttle experiment.
Dennis falls for a girl hiding her homelessness.
Viki loves Charlie, but Alan thinks it's him.
Alex is suspected of taking Darlene's ring.
Eric and Simone want to date others.
The new semester offers challenges and changes.
A bully's threat triggers a fantasy for Arvid.
Charlie must choose between students and union.
Dennis' antics demote him to a remedial class.
Charlie moonlights as a TV pitchman.
The chess-team coach's fervor distracts Arvid.
Charlie's date (Adrienne Barbeau) is Dr. Samuels' sister.
Charlie pulls the plug on Arvid's radio show.
Charlie makes friends with a new gym teacher.
Charlie makes unusual casting decisions.
Charlie directs the school play.
An alumnus (Jack Gilford), an accomplished journalist, visits.
Arvid makes a date with a popular classmate.
Maria hides her intelligence to date a 'hunk' (Brad Pitt).
Eric and Simone's first date goes awry.
Alan campaigns for class president.
Dennis gets a job to pay back his classmates.
Arvid's father substitutes as a math teacher.
Peer counselor Sarah tries to help a student.
Troubles surround the Moscow meet.
The students seek fun in Moscow.
Charlie announces a trip to the Soviet Union.
Dennis is torn between football and academics.
Disillusioned Charlie meets his dead uncle.
Dennis becomes obsessed with apocalypse.
Simone regrets using a computer dating service.
A popular teacher has Alzheimer's disease.
A course on marriage angers divorced Charlie.
Darlene feigns infatuation with depressed Alan.
Parents' Day causes concern for Eric and Maria.
Janice vies for first cello in the orchestra.
Eric thinks Maria is obsessed with him.
Separated Dr. Samuels moves in with Charlie.
Arvid's pen pal thinks he looks like Eric.
Arvid and Charlie reflect on relationships.
Dennis represents the school on a talk show.
The class seeks results of a psychological test.
Janice claims to have a poltergeist.
Charlie stages a production of 'Grease.'
Charlie coaches for a meet with Bronx Science.
Darlene and Sarah vie for a handsome student.
Dennis protests cafeteria cuisine.
A transfer student threatens the class.
Criticism upsets school journal editor Simone.
The class wrecks each other's science projects.
Arvid daydreams about his ideal woman.
Charlie investigates when Sarah's marks plummet.
Arvid's nightclub job affects his perspective.
The class makes a video for a time capsule.
The class discusses Valentine's Day.
Eric bows out of a competition against Soviets.
Maria falls for an academic rival.
Charlie faces a decision about a teaching exam.
Simone attends the wake of a poet.
Charlie teaches Eric about baiting teachers.
An assignment on ancestry unnerves Alan.
Charlie's ex-flame evaluates his class.
Charlie tries to save Arvid and Sarah's romance.
Charlie spends Thanksgiving with Dr. Samuels.
Charlie's version of 'Hamlet' has a moral.
Charlie teaches volleyball to the class.
A substitute may replace Charlie.
Janice throws a party for her peers and teacher.
The class forces Charlie into the computer age.
School journalist Dennis misquotes Mr. Moore.
Charlie's students imagine life 20 years hence.
Pupils with high IQs challenge teacher Charlie (Howard Hesseman).