The Drew Carey Show to me, is still great. I watch the reruns of it on TBS everyday. I like the weird vibe that it has after the first couple seasons. Lewis's job at the drug company makes for alot of good jokes, plus I've been a huge Ryan Stiles fan since the original "Whose Line is it Anyway?" on BBC.
3rd Rock is kinda meh, I mean I could watch it every once in a while, but its not really that great. Unique idea that went on WAY too long.
Married With Children, in its day, was as good as it got IMO.