Douglas Henshall predicts that Primeval will go on for "as long as it likes".
We chat to Douglas Henshall and Paul McGann about ITV1's new event drama Collision.
Will Dougie Henshall be returning for Primeval's fourth series? Click in to find out!

The third season of Primeval was shocking - but for all the right reasons. Read our verdict.
Click in to give your verdict to the shock twist in ITV's Primeval.
Primeval star Juliet Aubrey heaps praise on her villainous alter-ego Helen Cutter.
Douglas Henshall wants to avoid comparisons between his show Primeval and Doctor Who.
The cast and monsters for the third season of Primeval are revealed by ITV.
Primeval actor Douglas Henshall brands Simon Cowell and Sharon Osbourne "terrible people".
This darker episode shows how good Primeval can be when it strays from the formula.
Today: Video: The big 'Heroes' shocker? - Click in to watch a preview clip of a shocking moment from the next episode of Heroes.
Neighbours: 5786: Zeke tries to escape the store room.
Monday, 17:30 on Five.
Home and Away: 4966: Kirsty's illness is unknown.
Monday, 18:00 on Five.
Hollyoaks: 2701: Zoe's trial commences.
Monday, 18:30 on Channel 4.
Emmerdale: Will suddenly collapses.
Monday, 19:00 on ITV1.
Coronation Street: Rosie blackmails John for more cash.
Monday, 19:30 on ITV1.
EastEnders: Max's plot to fleece Ian takes a surprising turn.
Monday, 20:00 on BBC One.
Our picks from Sunday's primetime TV:
| 20.00 | The X Factor (ITV1) |
| 21.00 | I'm a Celebrity... Get Me Out of Here! (ITV1) |
| 21.00 | The Xtra Factor (ITV2) |
| 21.00 | House (Sky1) |