I think the quality has waned a little bit in the last season, but Misfits is one of the best shows no one has seen. Was very happy to see it here.
A strange one that I loved (also British) was "All The Small Things". It's about a church choir that, due to a strange set of twists, start singing popular music. Maybe more of a sitcom than what you listed but very good.
I actually don't watch a lot of television, and when I do, it's usually while I'm doing something else. So I watch a lot of cartoons because they usually aren't too deep and I can follow them while only paying half attention. Favorites: My Little Pony, Darkwing Duck, (the original) Teenage Mutant Ninja Turtles, Rescue Rangers, Futurama, Ducktales, Adventure Time, Fraggle Rock (not a cartoon but close enough), Invader Zim, The Real Ghostbusters, and Shaun the Sheep (and Wallace and Gromit).