8 Out of 10 Cats Does Countdown Series 21

Katherine Ryan and Joe Lycett take on Sean Lock and Johnny Vegas. Jimmy Carr hosts. Rachel Riley looks after the numbers. Christopher Bliss joins Susie Dent in Dictionary Corner.

Jimmy Carr hosts with Rachel Riley and Susie Dent. Sean Lock and Paul Foot take on Jon Richardson and Angela Barnes. John Cooper Clarke joins Dictionary Corner.

Jimmy Carr and Rachel Riley host as Sean Lock and Harriet Kemsley compete against Jon Richardson and Joe Lycett. Mat Ewins joins Susie Dent in Dictionary Corner.

Jimmy Carr hosts the game show mash-up, with Rachel Riley and Susie Dent. Jon Richardson and Sara Pascoe take on Sean Lock and Richard Ayoade. Nick Helm joins Susie in Dictionary Corner.

Jimmy Carr hosts as Jon Richardson and Lucy Beaumont take on Roisin Conaty and Joe Wilkinson. Bec Hill joins Susie Dent in Dictionary Corner.

Jon Richardson and Joe Wilkinson take on Lee Mack and Katherine Ryan. Brett Domino is in Dictionary Corner. Jimmy Carr hosts, with Rachel Riley and Susie Dent.