Family members compete. Host: Anne Robinson.
Contestants facedown host Anne Robinson dressed as Christmas characters, including Santa and Rudolph the Red-Nosed Reindeer.
Davy Jones, Dirk Benedict, Dennis Weaver, Nichelle Nichols, Ed Begley Jr., Erin Gray, Raven-Symone and Vicki Lawrence compete in a celebrity edition.
Middle-school pupils from across the nation test their knowledge.