8 Out of 10 Cats Does Countdown: Season 21, Episode 6

21 - 6: Joe Wilkinson, Lee Mack, Katherine Ryan, The Brett Domino Trio

Jon Richardson and Joe Wilkinson take on Lee Mack and Katherine Ryan in the comedy words-and-numbers game, while The Brett Domino Trio join Susie Dent in Dictionary Corner. Hosted by Jimmy Carr, with Rachel Riley looking after the numbers and letters.