Revived from cancellation for two more seasons (13 episodes total) with the same cast, starting in early 2011: http://news.bbc.co.uk/2/hi/entertainment/8280734.stm
Series three attracted average audiences of about five million in its Saturday tea-time ITV slot.
But when ITV was forced to make drastic cuts of £40m in the channel's production budget, it looked like spelling the end of the special-effects laden series.
As part of the new deal, also part-funded by BBC Worldwide and Germany's Pro7, 13 new episodes will be split over the two series, with series four going out in early 2011.
Tim Haines, Creative Director of Impossible Picture, said: "I am thrilled that ITV has agreed to this new deal which will allow Impossible Pictures to produce another 13 episodes of Primeval.