Jimmy Carr hosts a brand new series of the anarchic letters and numbers mash-up, with Countdown regulars Susie Dent and Rachel Riley. Jon Richardson and Harriet Kemsley take on Lee Mack and Munya Chawawa, while David O'Doherty joins Susie in Dictionary Corner.

Guests: Rob Beckett and Joe Wilkinson vs Sarah Millican and Jamali Maddix.
Glenn Moore in the dictionary corner.

Rob Brydon and Katherine Parkinson vs Jon Ricardson and Babatunde Aléshé
In the Dictionary Corner: Adam Buxton.

Rhod Gilbert and Sarah Millican vs Judi Love and Joe Lycett.
In the corner with Susie Dent: Jazz Emu.

Jimmy Carr presents as Jon Richardson and Asim Chaudhry take on Joe Wilkinson and Roisin Conaty. Lucy Pearman is in Dictionary Corner with Susie Dent, while Rachel Riley looks after the numbers and letters.