Hmm, I'd have to say.
- Battlestar Galactica
- Doctor Who
- Robin Hood
I used to LOVE LOVE LOVE House, but as of this last season with the cop, it's been a chore to watch the series. I hope they finish up that story arc and get back to the show already. If not I may just stop watching it...
Though I suffered through the entire first season (and half of the second) of Enterprise, so you know I can take a lot of pain. X-/
And of course Battlestar Galactica, the remake of the sci-fi classic doesn't disappoint. Frankly, it is the best show, sci-fi or otherwise on TV right now.