8 out of 10 cats Show Summary, Upcoming Episodes and TV Guide

Jimmy Carr hosts the game show mash-up, with Rachel Riley and Susie Dent. Jon Richardson and Lucy Beaumont take on Roisin Conaty and Joe Wilkinson in the comedy words-and-numbers game, while Bec Hill joins Susie Dent in Dictionary Corner.

Sean Lock and Harriet Kemsley take on Jon Richardson and Joe Lycett in the words-and-numbers game, while Mat Ewins joins Susie Dent in Dictionary Corner.

Katherine Ryan and Joe Lycett take on Johnny Vegas and Sean Lock in the words-and-numbers game, while would-be novelist Christopher Bliss joins Susie Dent in Dictionary Corner. Hosted by Jimmy Carr with Rachel Riley looking after the numbers and letters.

Jimmy Carr hosts as Sean Lock and Daisy May Cooper take on Richard Ayoade and Ivo Graham. Adam Buxton joins Susie Dent in Dictionary Corner and Joe Wilkinson assists Rachel Riley.

Jimmy Carr hosts as Sean Lock and Kerry Godliman take on Jon Richardson and Joe Wilkinson. With Susie Dent, Rachel Riley and Dictionary Corner guest Mr Swallow, aka Nick Mohammed.

Jimmy Carr hosts as Sean Lock and Kevin Bridges take on Jon Richardson and Victoria Coren Mitchell in the classic words-and-numbers quiz. Regular Countdown maths whizz Rachel Riley and words guru Susie Dent are on hand to adjudicate, with Susie joined in Dictionary Corner by Spencer Jones.

Sean Lock and Harry Hill take on Jon Richardson and Rose Matafeo, while Alex Horne and the Horne Section join Susie Dent in Dictionary Corner. Hosted by Jimmy Carr with Rachel Riley looking after the numbers and letters.

Sean Lock and Katherine Ryan take on Jon Richardson and Joe Wilkinson in the classic words-and-numbers quiz, while Adam Riches as Sean Bean joins Susie Dent in Dictionary Corner. Hosted by Jimmy Carr, with regular Countdown mathematician Rachel Riley looking after the numbers and letters.

Sean Lock and Sara Pascoe take on special guest team captain Alan Carr and Tom Allen in the classic words-and-numbers quiz, while Rosie Jones joins Susie Dent in Dictionary Corner. Hosted by Jimmy Carr, with regular Countdown mathematician Rachel Riley looking after the numbers and letters.

Sean Lock and Joe Wilkinson take on Jon Richardson and Sara Pascoe. Sam Simmons is in Dictionary Corner, while maths whizz Rachel Riley looks after the letters and numbers.

Sean Lock and Miles Jupp take on Jon Richardson and Rose Matafeo, while Vic Reeves joins Susie Dent in Dictionary Corner. Hosted by Jimmy Carr, with regular Countdown mathematician Rachel Riley looking after the numbers and letters.

Sean Lock and Michelle Wolf take on Jon Richardson and Rob Beckett in the classic words and numbers quiz. Spencer Jones joins Susie Dent in Dictionary Corner, while maths whizz Rachel Riley looks after the numbers.

Sean Lock and Joe Wilkinson take on guest captain Richard Ayoade and Aisling Bea. Plus special guest Tom Allen joins Susie Dent in Dictionary Corner, while maths whizz Rachel Riley looks after the numbers.

Sean Lock and Johnny Vegas take on guest captain Alan Carr and Lou Sanders. Plus The Brett Domino Trio join Susie Dent in Dictionary Corner, while maths whizz Rachel Riley looks after the numbers.

Sean Lock and Kevin Bridges take on Joe Wilkinson and Victoria Coren Mitchell. Adam Kay joins Susie Dent in Dictionary Corner.

Sean Lock and Phil Wang take on guest captain Alan Carr and Harriet Kemsley in the classic words and number quiz. David O'Doherty joins Susie Dent in Dictionary Corner.

Sean Lock and Miles Jupp take on guest captain Alan Carr and Roisin Conaty in the classic words and number quiz. Ivan Brackenbury joins Susie Dent in Dictionary Corner.

Katherine Ryan guest hosts a very special all female edition celebrating 100 years of women's suffrage. Roisin Conaty and Jessica Hynes take on Sara Pascoe and Lolly Adefope in the classic words and numbers quiz. Morgana Robinson appears in character as Natalie Cassidy alongside Susie Dent in Dictionary Corner, while maths whizz Rachel Riley looks after the numbers.

Sean Lock and Roisin Conaty take on guest captain Alan Carr and Joe Lycett in the classic words and number quiz. Spencer Jones joins Susie Dent in Dictionary Corner.

Jimmy Carr hosts as Sean Lock and Richard Ayoade take on Jon Richardson and Jessica Knappett. Plus special guests Alex Horne and the Horne Section.

Jimmy Carr hosts as Johnny Vegas and Rhod Gilbert take on Joe Wilkinson and Roisin Conaty, Tom Allen is in Dictionary Corner.

Jimmy Carr hosts another new edition of the words and numbers game. Lee Mack and Victoria Coren Mitchell take on Alan Carr and Dane Baptiste. Sam Simmons is in with Susie Dent, and Rachel Riley is in charge of the letters and numbers.

Jimmy Carr hosts the new series of the words and numbers quiz. In this show, captain Sean Lock and Vic Reeves take on captain Jon Richardson and Sara Pascoe. David O'Doherty joins Susie Dent in Dictionary Corner, while Rachel Riley takes care of the letters and numbers.

Jimmy Carr hosts the new series of the words and numbers quiz. In this show guest captain Kathy Burke and Roisin Conaty take on guest captain Johnny Vegas and Bob Mortimer. John Cooper Clarke joins Susie Dent in Dictionary Corner, while Rachel Riley takes care of the letters and numbers.

Jimmy Carr hosts as Sean Lock and Stephen Mangan take on guest captain Richard Ayoade and Katherine Ryan, Bill Bailey is in Dictionary Corner.

Brand new edition hosted by Jimmy Carr with Jon Richardson and Jonathan Ross who take on guest captain Lee Mack and Victoria Coren Mitchell, with Jessie Cave in Dictionary Corner.

Jimmy Carr hosts a new episode of the panel/quiz show mash-up, as the 8 Out of 10 Cats crew take over the words and numbers quiz. In this edition it's Jon Richardson and Chris Addison against Joe Wilkinson and Katherine Ryan, with David O'Doherty in Dictionary Corner.

Jimmy Carr hosts the words and numbers quiz with Jon Richardson and Michelle Wolf who take on guest captain Jonathan Ross and Johnny Vegas. Pappy's is in Dictionary Corner.

Jimmy Carr hosts the words and numbers quiz with Sean Lock and Joe Wilkinson who take on Jon Richardson and Jayde Adams. David Baddiel is in Dictionary Corner.

Jimmy Carr hosts a comedy version of the quiz show. Jon Richardson and Phil Wang take on guest captain Russell Howard and Roisin Conaty. Nick Helm is in Dictionary Corner with Susie Dent, while Rachel Riley looks after the numbers and letters.

Jimmy Carr hosts, David Mitchell and Cariad Lloyd take on Jon Richardson and Russell Howard. Sam Simmons joins Susie Dent in Dictionary Corner, while Rachel Riley flips the tiles.

Jimmy Carr hosts with guest captain Richard Ayoade and Rob Beckett vs Jon Richardson and Claudia Winkleman. Adam Riches joins Dictionary Corner, with Susie Dent and Rachel Riley.

Jimmy Carr hosts a brand new episode with guest captain David Walliams and Jessica Hynes going up against Jon Richardson and Rhod Gilbert. Sam Simmons joins Countdown's resident lexicographer Susie Dent in Dictionary Corner, while Rachel Riley looks after the numbers and letters.

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.

Jimmy Carr hosts with Sean Lock and Danny Dyer vs Joe Wilkinson and Gabby Logan. David O'Doherty joins Dictionary Corner, with Susie Dent and Rachel Riley.

Jimmy Carr hosts with Sean Lock and David Mitchell going up against Jon Richardson and Katherine Ryan. Brett Domino Trio joins Countdown's resident lexicographer Susie Dent in Dictionary Corner, while Rachel Riley looks after the numbers and letters.

Jimmy Carr hosts as Sean Lock and Roisin Conaty go up against Jon Richardson and Nish Kumar. Adam Buxton joins Susie Dent in Dictionary Corner, with Rachel Riley.

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.

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.

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.

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.

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

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 Isy Suttie, Richard Osman and Alex Horne.

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

Jimmy, Sean, Jon, Susie and Rachel are joined by Isy Suttie, Richard Osman and Alex Horne.

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

This show gets a 1980s makeover as part of Channel 4 80s Night. Jimmy Carr hosts a new edition of the ultimate 80s words and numbers quiz show, launched in 1982. Jon Richardson and special guest captain Lee Mack are joined by celebrity guests Henning Wehn and David O'Doherty. Countdown regular Susie Dent is joined by Vic Reeves in Dictionary Corner, while Rachel Riley provides the letters and numbers with a little 'help' from comedian Joe Wilkinson.

Jimmy Carr hosts the iconic words and numbers quiz, as 8 Out of 10 Cats team captains Sean Lock and Jon Richardson are joined by celebrity guests Sarah Millican and Chris Ramsey. Countdown regular Susie Dent shares Dictionary Corner with Abandoman, while the country's favourite boffin Rachel Riley dispenses the letters and numbers with a little help from comedian Joe Wilkinson.

Lee Mack guest captains in place of Sean Lock

This show gets a 1980s makeover as part of Channel 4 80s Night. Jimmy Carr hosts a new edition of the ultimate 80s words and numbers quiz show, launched in 1982. Jon Richardson and special guest captain Lee Mack are joined by celebrity guests Henning Wehn and David O'Doherty. Countdown regular Susie Dent is joined by Vic Reeves in Dictionary Corner, while Rachel Riley provides the letters and numbers with a little 'help' from comedian Joe Wilkinson.

Jimmy Carr hosts the iconic words and numbers quiz, as 8 Out of 10 Cats team captains Sean Lock and Jon Richardson are joined by celebrity guests Sarah Millican and Chris Ramsey. Countdown regular Susie Dent shares Dictionary Corner with Abandoman, while the country's favourite boffin Rachel Riley dispenses the letters and numbers with a little help from comedian Joe Wilkinson.