Once again presenter Jimmy Carr oversees a panel of top-name celebrities in `Big Fat Quiz of Everything', a quiz show where they compete to see who can answer the most questions correctly. The rounds are primarily based on past, and recent, popular culture, news and events. Three teams composed of two celebrities each earn points for correct answers, and the team with the most points at game's end wins the Big Fat Quiz crown. Featuring is Mel Giedroyc, Claudia Winkleman, David Mitchell, Jonathan Ross, Bob Mortimer and Kristen Schaal.