same as most of the rest of ya:

always sunny
arrested d
curb
seinfeld

breaking bad is definently sick but not really a sitcom... sitdram?

hot damn im forgetting them left and right. i loves me some earl too.

Nothing with canned laughter. Having the sitcom tell me when to laugh is not my idea of funny.

Current:
House
Chuck
How I Met Your Mother (laugh track and all...)

Oldies:
Seinfeld
Friends (Hey...I'm only 23, give me a break!)

Human Toilet Bowls

scrubs

My father wears sneakers in the pool.

TIPPY TOE! nuff said.

The Office
My Name is Earl ( soooo sad when this was cancelled )
Seinfeld

Steinfield no question.

How I Met Your Mother and The Big Bang Theory, even though I seriously dislike laugh tracks.