i watch very little on tv that isn't comedy, and i'm going to mention a few things that no one else even came close to consider mentioning, so maybe this post can just be ignored altogether:

The Office-the only show on this list that is best watched chronologically because the story line's actually essential to a lot of the comedy

Scrubs- another storyline heavy comedy, but you'll laugh if all you do is watch the reruns

Always Sunny- any episode from any season is gold.

Home Movies- best show that no one's heard of, imo.

Aqua Teen Hunger Force- obviously my taste really differs from everyone else here if i'm the first person to have mentioned this show

Tim and Eric- super-fucking-weird/cutting edge humor. if you're into it, it's hilarious; otherwise you will probably come back asking me what the fuck i just had you watch.

Moral Orel- i have a feeling this could become wuf's new favorite show.

happy to see my so-called life got a shout out, but that show's well before 2006. i guess you've realized by now that i'm a college-aged rerun whore