8 Out of 10 Cats Does Countdown

Jimmy, Sean, Jon, Rachel and Susie are joined by Vic Reeves, Aisling Bea and David O'Doherty.

Jimmy Carr, Sean Lock and Jon Richardson are joined by Bob Mortimer and Holly Walsh for more comic innuendos and unpredictable conundrums. Claudia Winkleman stands in for Rachel Riley on letters-and-numbers duty, while Isy Suttie is in Dictionary Corner with Susie Dent is in Dictionary Corner.

Jon Richardson takes on guest team captain Johnny Vegas in another round of words and numbers chaos with Strictly host Claudia Winkleman and comedians Tom Allen & Rob Beckett.

Jon Richardson takes on team captain Sean Lock in another round of words and numbers chaos with Rebecca Front and Kevin Bridges. Joe Lycett is in the corner with Susie Dent.

Katherine Ryan & David Mitchell join team captains Sean & Jon for another round of light-hearted words and numbers fun. Nick Helm assists in dictionary corner.

Jimmy Carr returns to host a brand new episode with guest captain David Walliams and Jonathan Ross going up against Jon Richardson and Joe Lycett. Isy Suttie joins Countdown's resident lexicographer Susie Dent in Dictionary Corner, while Rachel Riley looks after the numbers and letters.

Jon Richardson takes on guest team captain Johnny Vegas in another round of words and numbers chaos with Strictly host Claudia Winkleman and comedians Tom Allen & Rob Beckett.

Jon Richardson takes on team captain Sean Lock in another round of words and numbers chaos with Rebecca Front and Kevin Bridges. Joe Lycett is in the corner with Susie Dent.

Katherine Ryan & David Mitchell join team captains Sean & Jon for another round of light-hearted words and numbers fun. Nick Helm assists in dictionary corner.

Jimmy, Sean, Jon, Susie and Rachel are joined by Jason Manford, Roisin Conaty and Sam Simmons.

Jimmy, Sean, Jon, Susie and Rachel are joined by Rob Beckett, Cariad Lloyd and Jamie Laing.