TV Series recommendations?

[criada]

Though kehrli has bought all six seasons of 24, I would like a break after the drawn out intensity of Season 1. So Keffy asked what series I do want to watch. There's some series I'm in the middle of that I've watched on my own (Carnivale, Battlestar Galactica) or with people who aren't Keffy (Deadwood, Doctor Who). And dangit, I need to figure out what episode I'm on so I can keep going.

I'm interested in Torchwood, but Keffy hasn't seen much Doctor Who. Keffy vetoed Dexter upon hearing the premise (serial killer who kills serial killers. I've still heard lots of good stuff, though.)

Any recommendations?