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 21 Katherine Ryan, Joe Lycett, Johnny Vegas, Christopher Bliss
- Season 21 Paul Foot, Angela Barnes, John Cooper Clarke
- Season 21 Harriet Kemsley, Joe Lycett, Mat Ewins
- Season 21 Sara Pascoe, Richard Ayoade, Nick Helm
- Season 21 Lucy Beaumont, Roisin Conaty, Joe Wilkinson, Bec Hill
- Season 21 Joe Wilkinson, Lee Mack, Katherine Ryan, Brett Domino
8 Out of 10 Cats Does Countdown - Season 21 Episode 3 Harriet Kemsley, Joe Lycett, Mat Ewins
7.30 47 minutes Jimmy Carr and Rachel Riley host as Sean Lock and Harriet Kemsley compete against Jon Richardson and Joe Lycett. Mat Ewins joins Susie Dent in Dictionary Corner.
