A celebrity Christmas edition of the general knowledge quiz in which four teams try to come up with the answers that no-one else could think of. Presented by Alexander Armstrong and co-host Richard Osman, with contestants Christopher Biggins, Paul Zerdin, Gary Wilmot, Michelle Collins, Debbie McGee, Richard Cadell with Sooty, Faye Tozer and Duncan James. Plus a special performance by Aled Jones and Russell Watson.