Fraiser and Friends, particularly the older episodes.
I enjoy Will and Grace, although the title characters aren't as good as the supporting cast.
I like Scrubs a lot, too. I guess I watch NBC more than any other network.

For shows not on any longer - Monty Python, Fawlty Towers, and Black Adder (hence, my nick :))

For shows currently airing, there is really none that really make me laugh consistently. I chuckle most often at Coupling and Scrubs I guess. I watch King of Queens every now and then as well, but that's more to oggle Leah Remini. :D

I think the Daily Show is my vote for funniest non-cartoon... Not the sketches/interviews so much as just Jon Stewart doing the news updates. Man that is some good shit every time.

When it comes to sitcoms, I think Scrubs is the only one that I laugh out loud at consistantly!

The Daily Show
Seinfeld
That 70's Show
Spin City

Are basically the only current-ish ones I watch.

Older

Young Ones
Mr. Bean

New
That 70's Show
Reno 911
Cops

Scrubs... highly underrated show IMO this is the funniest sitcom since seinfield... and right now Tara Reed is guest starring... man that chick is HOT!!! I also enjoy friends but the show has been on for too many years now..




DB

Seinfeld

Some of the episodes are pure genious.

Scrubs all the way. I try not to miss it.

Curb Your Enthusiasm is my favorite

The Office on BBC is also up there

I like the BBC Coupling but can't get over how bad the US version was...Who did the casting for that? Thank God they cancelled that one!

best show on tv

married with children


i still laugh at it


new stuff


that 70s show is fairly funny


the daliy show is one of the few shows i make it a point to see as often as possiable

Daily Show
News Radio
Friends

Most of the good ones have been mentioned already.

Seinfeld
That 70's Show
Curb Your Enthusiasm
Etc...

But one show that hasn't been mentioned yet is

Sports Night

Malcolm in the Middle.

I've unfortuantely haven't seen any episodes this season. But I've seen most of the past ones, and they're consistently hilarious. Dewey is awesome!

They don't seem to even be playing in late night re-runs anymore, but I love Kids in the Hall and the Upright Citizens Brigade. Who can forget all the memorable characters? : Chicken Lady, Cabbage Head, Head Crusher, Gavin, Danny, etc. Leave it to Comedy Central to cancel or not air good comedy. Battlebots was cool for a few shows but not worth UCB's slot by a long shot.

Kids in the Hall has been on recently. I think it shows at about 1pm Central time.

Conan.
Chappelle.
Insomniac.

FRIENDS. period. end of story.

RENO 911.... funny stuff. The charaters all remind me of people I know or knew, too. Lt. Tangle is my immediate supervisor, so I find him really funny.

I like that new Ron Howard show w/ David Cross - tis funny hoohah stuff

Scrubs

King of Queens and That 70's Show.

Most Extreme Elimination Challenge on Spike TV

Curb Your Enthusiasm

According to Jim
Everybody Loves Raymond
Still Standing

The Office
Phoenix Nights

and I also still love to watch Red Dwarf

Dreadful - my only exposure to this is on American Airline flights. AA must have bought up the whole series. It's enough to try and keep my dinner down when this comes on. I've not met a single Brit who thinks this is funny. To be fair on the travelling American public most I've spoken to think it stinks to.

There is a wide spectrum, but that is a good thing.

Coupling - the UK version is great, but more importantly the lead actor (dunno name) was in a shortlived vampire drama Ultraviolet which kicked serious ass. It's on DVD in the UK and it's my plug of the week. The female lead in Coupling is damn hot as well...

Seinfeld - because the show about nothing often hits closer to home than we wish.

Sports Night - i may have the title wrong, but it was also short lived half hour comedy in the US that really earned ESPN Sportcenter fans proper.

MTV News - they just need to add Dennis Miller somehow and today's opportunities at sarcasm will not be completely wasted.

Current:

Daily Show (only thing currently in production that makes me laugh out loud)

Insomniac

Gilmore Girls -- some of the cleverest wordplay you're ever going to see.

That 70's Show -- but mainly for Red.

Past:

Python

The first six-eight episodes (original summer 'season') of Northern Exposure. Carl Jung in the cab of a semi is an image that'll stay with me forever.

Police Squad -- of course.

I'm going to put in an honorable mention for a very unfashionable show from 30-40 years ago, The Beverly Hillbillies. Mostly it wasn't anything special, but occasionally it reached heights of absurdism that were positively Pythonesque.

For a current new show I have to say Arrested Development. Very funny show.

That 70's show
seinfeld
will and grace

I haven't seen many episodes, but the 2 that I did see were hilarious so I'll vote for Curb Your Enthusiasm too.

Seinfeld
Sex and the City (not considered a comedy, but still funny!)
Flying Circus
Red Dwarf
Most Extreme Elimination Challenge (MXC)

i dont watch much tv

but i do like:

that 70s show (only get the second season here in oz but i have read up on it a little)

MASH (classic... no one can do any better)

red dwarf (not on the box at the moment but my aunt and uncle have a heep on video)

seinfeld (can never get enough of it and i still get a little tingle of nostalga when i hear greendays - good ridance (time of your life)

friends, coupling, will and grace and any other comedy by committee are all awful. i state this as fact because there is documentary evidence to prove it. i don't even know how some of you can put will and grace as the best comedy show on tv. i consider myself to have a reasonably good sense of humour, and i can sit through will and grace without cracking a smile.

curb your enthusiasm on the other hand is the definition of good comedy. the office, scrubs, mash, seinfeld, people like us... all much much better.

Mad TV with the current line up.

Seinfeld
Jimmy Kimmell
Conan
Tough Crowd
Howard Stern
Maximum Exposure (even though it's really just home video clips, the editing makes it just so damn hilarious.)

Right now, I would have to say Arrested Development

FRIENDS- hands down.

Friends

The BBC Coupling is great. Nothing else comes close in my opinion.

Conan, The Daily Show, and of course, MXC!