Series 13: Writers A celebrity writers 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 Jane Fallon, Fiona Neill, Nadia Shireen, Conn Iggulden, Richard Madeley, Allison Pearson, Tim Weaver and Jill Mansell.

Featuring stars of classic kids' TV, including Peter Purves, Lesley Judd, Jane Tucker, Freddy Marks, Dave Benson Phillips, Mike Read, Kirsten O'Brien and Terrence Hardiman.

A Casualty-themed edition featuring Di Botcher, George Rainsford, Ian Bleasdale, Sue Devaney, Azuka Oforka, James Redmond, Clive Mantle and Julia Watson.