Australian TV · ABC
Catalyst: all seasons, episodes and where it airs in Australia
Quick answer · Australia
Catalyst is a Australian documentary series on ABC, running since 2001, with 22 seasons and 554 episodes.
No new season of Catalyst has been confirmed yet; the latest episode aired on Tuesday, March 1, 2022.
Catalyst seasons (22 seasons, 554 episodes)
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 17 | August 9, 2001 | December 6, 2001 |
| Season 2 | 43 | February 14, 2002 | December 26, 2002 |
| Season 3 | 35 | February 13, 2003 | November 20, 2003 |
| Season 4 | 42 | February 19, 2004 | December 2, 2004 |
| Season 5 | 39 | February 17, 2005 | November 24, 2005 |
| Season 6 | 30 | March 30, 2006 | November 23, 2006 |
| Season 7 | 39 | February 15, 2007 | November 15, 2007 |
| Season 8 | 40 | February 14, 2008 | November 20, 2008 |
| Season 9 | 32 | February 2, 2009 | October 29, 2009 |
| Season 10 | 31 | February 11, 2010 | September 23, 2011 |
| Season 11 | 32 | February 17, 2011 | October 29, 2011 |
| Season 12 | 25 | October 11, 2011 | November 8, 2012 |
| Season 13 | 25 | February 7, 2013 | October 31, 2013 |
| Season 14 | 22 | July 17, 2014 | December 11, 2014 |
| Season 15 | 20 | February 3, 2015 | December 8, 2015 |
| Season 17 | 26 | May 24, 2016 | November 15, 2016 |
| Season 18 | 17 | August 15, 2017 | February 27, 2018 |
| Season 19 | 8 | March 6, 2018 | October 23, 2018 |
| Season 20 | 10 | January 30, 2019 | October 22, 2019 |
| Season 21 | 5 | April 14, 2020 | May 12, 2020 |
| Season 22 | 11 | February 16, 2021 | August 31, 2021 |
| Season 23 | 5 | February 1, 2022 | March 1, 2022 |
Original Australian air dates on ABC.
Common questions
How many seasons of Catalyst are there?
Catalyst has 22 seasons and 554 episodes, first airing on Thursday, August 9, 2001.
Is Catalyst still on?
No new season of Catalyst has been confirmed yet; the latest episode aired on Tuesday, March 1, 2022.
What channel is Catalyst on in Australia?
Catalyst airs on ABC. Past episodes are often available on the broadcaster's own catch-up app.
Source: TVmaze (CC BY-SA), retrieved October 7, 2026.