Torchwood
Torchwood is a spin off from Doctor Who. The marketing strategy is pretty clear: the BBC created one spin off for younger viewers (the Sarah Jane Chronicles) and this one for more adult viewers. Torchwood has much more sex and plenty of gore. Characters from Doctor Who move back and forth between the two series, with the lead being Captain Jack Harkness (John Barrowman). He leads a secret unit (Torchwood) set up by Queen Victoria to save the world from aliens. The first two seasons are enjoyable, and occasionally very good, but the third season — Children of Earth — is something special. It is a five-part miniseries, shown on five consecutive nights, dealing with a single alien threat. It is some of the best British drama I have seen in a while. If you get BBC America, look for it starting July 20th.