Air date: 2013-02-16

Runtime: 50 min

A sporting celebrity special edition of the quiz, with Phil Tufnell and Martin Offiah.

Air date: 2013-03-23

Runtime: 50 min

A special Doctor Who edition of the quiz, with guests including Sylvester McCoy.

Air date: 2013-08-17

Runtime: 50 min

Jean Boht, Craig Charles, Nick Conway, Jennifer Gibney, Jeffrey Holland, Danny John-Jules, Brendan O'Carroll, Su Pollard, Shen Xiaojing

Air date: 2013-08-24

Runtime: 50 min

Radio DJs and presenters including Scott Mills and Anneka Rice take part in the quiz.

Air date: 2013-08-31

Runtime: 50 min

Top chefs Rachel Allen, Jean Christophe Novelli, Paul Rankin and Rustie Lee take part.

Air date: 2013-09-07

Runtime: 50 min

Christopher Biggins, Natalie Cassidy, Ricky Groves, Tammy Jung, John Noakes, Jessica Pardoe, James Phelps, Oliver Phelps, Peter Purves, Janet Street-Porter