Party Down is a completely hilarious comedy and did not receive nearly enough recognition during its short, two-season run. Some parts still make me laugh just thinking about it, and it is rife with celebrity guests a la Extras. Made by the same guy who did Veronica Mars, too, except its a comedy as opposed to a noir/drama. The League is absolutely hilarious. If you like dick jokes. I don't watch football so I was a little hesitant to get into it, but the fantasy football league is really just a backdrop for the comedy and an understanding of football is not necessary for the humor. Has Nick Kroll, Paul Scheer, and Jon Lajoie (That guy who got his start doing youtube videos), among others. 30 Rock was way better than I had expected it to be. I look forward to watching it every week with Community (which in my honest opinion has inherited the throne of the late, great Arrested Development) and The Office. Modern Family is good too. And that one latino chick is hot.

edit: let me add The Venture Bros. It might be one of my all time favourite shows. It doesn't feel like most cartoons, it feels like a novel - there is a well laid mythos which makes it feel well rounded, the character dialogue is always hilarious, and the animation is some of the most stylish I've ever seen (I believe it's also done using traditional methods). It really is a show that doesn't deserve to get passed up. It started out as a satire on the Jonny Quest type shows that were on the old cartoon network, but grew into something more. I honestly feel that once this show is done, I will look back fondly on all seasons as a piece of art, much in the same way I look back at Arrested Development now.