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 19 Harry Hill, Rose Matafeo, Alex Horne
- Season 19 Joe Wilkinson, Kiri Pritchard-McLean, The Brett Domino Trio
- Season 19 Richard Ayoade, Katherine Ryan, David O'Doherty
- Season 19 Miles Jupp, Sophie Duker, Lee and Dean
- Season 19 Kevin Bridges, Victoria Coren Mitchell, Spencer Jones
- Season 19 Harriet Kemsley, Chris McCausland, Nick Helm
8 Out of 10 Cats Does Countdown - Season 19 Episode 1 Harry Hill, Rose Matafeo, Alex Horne
7.30 47 minutes Jimmy Carr hosts the classic words and numbers quiz as Sean Lock and Harry Hill take on Jon Richardson and Rose Matafeo, while Alex Horne joins Susie Dent in Dictionary Corner. Rachel Riley looks after the numbers and letters.
