8 Out of 10 Cats Does Countdown — Episode 4: Lee Mack, Joe Wilkinson, Jon Richardson, Jessica Knappett

You are watching the episode Lee Mack, Joe Wilkinson, Jon Richardson, Jessica Knappett Jimmy Carr hosts as Lee Mack and Joe Wilkinson take on Jon Richardson and Jessica Knappett. Comedian Nigel Ng is in Dictionary Corner. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate