Series 17 (Channel 4: Series 18)
First broadcast: Friday 23rd August 2019
Sean Lock and Sara Pascoe take on special guest team captain Alan Carr and Tom Allen, 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.
First broadcast: Monday 23rd December 2019
Jimmy Carr hosts a festive edition of the combination of the comedy panel show and the long-running words and numbers quiz, with Sean Lock and Bob Mortimer taking on Jon Richardson and Lucy Beaumont. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate with guests Adam Buxton and Joe Wilkinson