Series 3 (10 episodes, 23 March 2009 (Germany) or 28 March 2009 (UK) to 6 June 2009)
Note: This series was the originally the last as the show was cancelled due to budget cuts at ITV. Series 3 originally premiered in Germany a few days before it started on ITV 1 in the UK.
ITV released a series of 5 webisodes on 23 December 2010, 2–4 minutes long, that provided background to the upcoming series 4. Also available on BBC America.
Series 4 (7 episodes, 1 January 2011 to 5 February 2011)
Note: Primeval was Un-Canceled thanks to a deal between ITV, Watch, BBC America, and the German channel Pro7. Series 4 originally aired on ITV 1 then was later shown on Watch.