Anyone mention Undeclared? Because it was just an amazing comedy. I remember when it came out the same year I started College. It's done by the same folks behind Superbad and Freaks and Geeks ect..ect.. And you'll see a lot of the same faces too plus a few more famous faces. In the first episode you'll see the dude who plays Superman in "Smallville" and Pam from the "Office".
The link will take you to a few episodes to try it out.
Very Very underrated.
EDITED: I just noticed Martin had mentioned it but i thought i'd throw it out there again anyways.
Also a few cartoons which I would KILL for the chance to see new episodes:
Clone High: Written by the creator of Scrubs. A bunch of clones of famous people try growing up in a high school. It's one of the funniest shows I have ever seen.
Undergrads: Another great cartoon that I personally love because it reminds me of my friends. Nerd humor galore.