David Tennant,
Catherine Tate
Seasons: 1-4
Network: BBC 1

Story: Follows the newly regenerated tenth 'Doctor', the last of the Time Lords, who travels across both time and space with assorted companions to take on all sorts of threats to life, the universe and all of existence.

Douglas Henshall, James Murray, Hannah Spearitt
Seasons: 1-2
Network: ITV

Story: A team of scientists investigate time anomalies and must deal with the prehistoric and future creatures that travel through to the present. Not helping is that the team leader's ex-wife has an agenda all her own.

Michael Chiklis, Benito Martinez, CCH Pounder
Seasons: 1-6
Network: FX

Story: Focuses on the tension between a group of corrupt but brutally effective cops & assault team members; the honest detectives caught in the middle who play both sides; and a police captain torn over his job and his ambitions.