I love Arrested Development. That was a great show and I hate that it never caught on. Easily the funniest thing on TV at the time.
I am a huge Simpson's fan. The new stuff isn't that great, but the first 9 seasons or so were glorious.
My wife and have really been enjoying Flight of the Conchords. I also enjoy Top Chef and Always Sunny in Philadelphia, which is hilarious. I hate to admit it, but I enjoy How I Met Your Mother. Without Barney though, that show would suck.