If Primeval had a crossover with something, what would tu like it to be?

I THINK DOCTOR WHO, BECAUSE HE TRAVELS IN TIME AND THE ANOMALIES ARE TIME GATEWAYS. MAYBE THE DOCTOR COULD HELP THEM FIND OUT más ABOUT THE ANOMALIES.

As a fan of Merlin aswell I would like a crossover between them. Could make a good shortie for Comic Releif o something? I'm sure Merlin would amor the 21st century, and Connor would probably be really geeky about meeting mythical legends like him and Arthur.

DOCTOR WHO AND JURASSIC PARK.