Season 28 - Episode Guide

Jimmy Carr hosts a combination of the comedy panel show and the long-running words and numbers quiz, with Richard Ayoade and Harriet Dyer taking on Bob Mortimer and Tom Allen. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate, Joe Wilkinson drops in and Ian Smith joins Susie in Dictionary Corner.

Jimmy Carr hosts as Joe Wilkinson and Josh Widdicombe take on Rhod Gilbert and Thaniya Moore in the long-running-words and numbers quiz. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate, while alternative comedian Joe Kent-Walters (aka Frankie Monroe) sits alongside Susie in Dictionary Corner.

Jimmy Carr hosts the comedy game show with Joe Wilkinson and Alex Brooker taking on Kevin Bridges and Judi Love. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate, with Peter Serafinowicz in the guise of Brian Butterfield joining Susie in Dictionary Corner.

Jimmy Carr hosts, as Roisin Conaty and Phil Wang compete against Joe Wilkinson and Lou Sanders. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate, while David O'Doherty joins Susie in Dictionary Corner.

Jimmy Carr hosts, inviting Jon Richardson and Lucy Beaumont to compete against Rob Brydon and Joe Wilkinson. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate, while Huge Davies joins Susie in Dictionary Corner.