Hm... I'm not a big TV person but... I hear a lot of good stuff about House, although I simply refuse to d/l it...
CSI (original, aka Nevada) was one of my faves...
Family Guy, a few episodes of American Dad... Robot Chicken tickles my sense of humor...
But overall Adult Swim these days = cow poo-poo
...whats with that awful 12.Oz Mouse and stuff like Home Movies? Stoner shows, I say!
An old one, but a good one: Angel (Spike cracked me up).