Well, I don't have a TV, and I don't bother watching anything on the sets I have access to... I came to the conclusion a while ago that signal-to-noise on American TV is waaay too high, so I rely on other people to figure out what stuff is actually good, then I get copies somehow. I've bought the DVDs for "The Office" (BBC version, I've already heard the NBC knock-off is rubish), one of my friends has convinced me to go to the library to watch "24" ("It's better than crack!" he says). I borrow the DVDs for "Family Guy" fairly often too. Kind of old, but I've also... stumbled upon... digital copies of "Red Dwarf". Funny show
I'm looking into buying the DVDs for Babylon 5, Farscape, SG-1, Scrubs, and Chapelle's Show, since I've either watched and enjoyed them, or have heard very good things about them.
Basically, the last time I sought out something to watch on TV was the Orange Bowl this year (January 4th). If I happen to be around other people who are watching TV, I might pay attention. Usually that's "The Daily Show" or Conan O'Brian though. The only other show that's watched regularly around here is "Friends". If that's on, I make a point of leaving the room, never could stand that show.
I'll have to look into some of the shows in this thread. I'll wait for more opinions to accumulate first, though