A 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 Jamie Laing, James Argent, Griff Rhys Jones, Nina Wadia, Lee Latchford Evans, Claire Richards, Sindhu Vee and Tiff Stevenson.
Airs Friday 23rd December at 5:15pm on BBC One.