Primeval returns in January for a fourth series, having survived the axe in summer 2009 thanks to a unique co-financing deal struck between ITV, Watch, Pro7 and BBC Worldwide. The official trailer has just been released, featuring an introduction from star Andrew-Lee Potts, which you can see embedded above. My reaction? Same old, same old. An impressive special effects showrell, and not much sense of anything else. But 80% of Primeval's enjoyment is gawping at the dinosaur/monster action sequences, so that's no big surprise. What do you make of it?