Catalyst poster

Catalyst Seasons

Returning Series 2014–2022
PBS Streaming on PBS

All seasons

10 seasons - 164 episodes
Season 23
Season 23 2022
6 episodes - Feb 1, 2022
Season 22
Season 22 2021
11 episodes - Feb 16, 2021
Season 21
Season 21 2020
6 episodes - Apr 14, 2020
Season 20
Season 20 2019
8 episodes - Feb 12, 2019
Season 19
Season 19 2018
8 episodes - Mar 6, 2018
Season 18
Season 18 2017
17 episodes - Aug 15, 2017
Season 17
Season 17 2016
40 episodes - Feb 2, 2016
Season 16
Season 16 2015
20 episodes - Feb 3, 2015
Season 15
Season 15 2014
22 episodes - Jul 17, 2014
Season 1
Season 1 2014
26 episodes - Jan 1, 2014