shows better than Seinfeld:
The Simpsons
The X-Files
Made In Canada
Trailer Park Boys
The Daily Show
BUT, it still is truly a great show, as far as (non-animated) sitcoms go, it's probably the best ever, the only sitcom of its era that can compete (that i can think of) is The Drew Carey Show, which was reallly hit or miss, with some episodes being pricelessly funny (drew wins the batmobile, drew sprangs his penis, drew cybers with Mimi), and some being kinda boring (some of the more lovey episodes involving his gf's), but it was always good for some nasty insults between Drew and Mimi, or Mimi and just about anyone for that matter.
Friends = shit
Arrested Development = snore
Curb Your Enthusiasm = snore
24 = ?... i dunno, i can't watch any action/drama/mystery/suspense all-in-one shows since X-Files ended
CSI = it's no L&W, that's for sure, not a big fan, but it's ok to watch, som interesting/gruesome deaths sometimes.
some good shows on tv: South Park, The Man Show, Buzz, Kevin Spencer, King Of The Hill, Family Guy, Futurama (i like animated sitcoms..so what?

), Letterman, Conan, Late Late Show, OTR
shows that need to come back: X-files (they had em on Space for a while, but now they're not on any channel), Beavis & Butt-Head (great music vids, horrible music vids, hilarious episodes), Tom Green Show (might not be your cup of tea, but some of his segments cracked me up harder than anything else mentioned in this thread so far, too many to even start mentioning any)