Season
- Season 0 2012-01-02
- Season 1 2013-04-12
- Season 2 2013-07-26
- Season 3 2014-01-03
- Season 4 2014-06-06
- Season 5 2014-09-05
- Season 6 2015-01-09
- Season 7 2015-05-03
- Season 8 2016-01-15
- Season 9 2016-02-25
- Season 10 2016-08-05
- Season 11 2016-09-24
- Season 12 2017-01-13
- Season 13 2017-06-22
- Season 14 2017-08-18
- Season 15 2018-01-19
- Season 16 2018-07-13
- Season 17 2019-01-11
- Season 18 2019-07-26
- Season 19 2020-01-09
- Season 20 2020-07-30
- Season 21 2021-01-14
- Season 22 2022-01-07
- Season 23 2022-07-29
- Season 24 2023-01-06
- Season 25 2024-01-12
- Season 26 2024-07-19
- Season 27 2025-01-03
- Season 28 2025-07-25
Season 28 Episode
- Season 22 Roisin Conaty, Kiri Pritchard-McLean, Jon Richardson, Rob Beckett
- Season 22 Jack Dee, Tom Allen, Jon Richardson, Judi Love
- Season 22 Roisin Conaty, Asim Chaudhry, Jon Richardson, Josh Widdicombe
- Season 22 Lee Mack, Joe Wilkinson, Jon Richardson, Jessica Knappett
- Season 22 Sarah Millican, Nish Kumar, Jon Richardson, Maisie Adam
- Season 22 Sean Lock, Harry Hill, Jon Richardson, Rosie Jones
8 Out of 10 Cats Does Countdown - Season 22 Episode 1 Roisin Conaty, Kiri Pritchard-McLean, Jon Richardson, Rob Beckett
7.30 47 minutes Jimmy Carr hosts as Roisin Conaty and Kiri Pritchard-McLean take on Jon Richardson and Rob Beckett. Comedian Huge Davies is in Dictionary Corner. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate
