A special celebrity 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 Iain Stirling, Marek Larwood, Kitty Scott-Claus, Vanity Milan, Shaparak Khorsandi, Johnny Vegas, Bhavna Limbachia and Victoria Ekanoye.