I'll mention two that haven't been mentioned yet. (I don't think.)
Californication and Shameless, both on Showtime.
Californication is clever with some great quick thinking dialogue. I think that it's in it 7th or so season, and man is it funny. You can watch it from the first episode which will either hook you for the seven seasons or turn you off completely. Very Funny Show. Duchovny, whom I never liked, is phenomenal.
Shameless is one of those shows that you are almost embarrassed to watch, but many of the actions of the characters are or should be shame evoking, but not to them, hence shameless. Also. that's how I feel when watching it. Shameless maybe when I should be ashamed.