A special experts 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 Nicky Clarke, Lowri Turner, Dr Milad Shadrooh, Dr Bolu Eso, Jonty Hearnden, Roo Irvine, Amber Butchart and Micaela Sharp.