I'm a huge fan of comedy in general...stand-up, movies, TV shows, etc.  Yet there are very few things nowadays that can actually make me laugh out loud.  I've been in kind of a comedy slump recently.  I want people to recommend to me stuff they think is funny, that I may not have heard of.  It could be anything, really.

My favorite TV shows:
Mr. Show
Dr. Katz
Home Movies
Seinfeld
Curb Your Enthusiasm
most of the stuff on [adult swim] I find funny but don't necessarily watch all the time

My favorite comedians:
Louis CK
David Cross
Bob Odenkirk
Paul F. Tompkins
Patton Oswalt
etc.

My favorite voice actors, etc. that may also do stand-up but I have only really heard their voice work:
H. Jon Benjamin
Jon Glaser
Dana Snyder
Tom Kenny (he's in anything that's animated really)

I'll also just throw out there that I think all the guys here at Giant Bomb are funny and make me LOL from time to time.

Recommend something that you don't see on the list.  I'd greatly appreciate it.  Conversely, f there is someone/something on this list you haven't heard of I'd suggest you check it out as well.  I value laughter more than anything, it's definitely the second best medicine, next to actual medicine of course.

well, i watch Comedy Central from 11 to 12 almost every weeknight, so obviously Stewart and Colbert. I also love South Park and enjoy Futurama, and i really liked Drawn Together while it was around. I usually watch new Simpsons episodes.

I enjoy watching people get hurt on youtube............I don't know why but it just makes me lol sometimes.

Im a bit of a comediophile myself, (that sounds I like sex with dead comics) and I actually wrote a half hour a few months ago but there arent any clubs around here.  I really like everything, well except Dane Cook, obviously.

Robert Schimmel
Doug Stanhope
Mitch Hedberg
Daniel Tosh
Mike Birbiglia

Comedy shows
Squidbillies (Yeah that squidbillies)
Arrested Development
Frisky Dingo
many many more...

i like daniel tosh, hes pretty good. though he has become comedy centrals bitch...josh sneed is not well know, but hes fantastic...
tv stuff, scrubs...though its older stuff is smarter comedy i think, after like season 4 its just random stuff (i still liked it though)...

Eddie Izzard used to be great. Well, I guess he still is, but he's just gone a little off the boil more recently.

I concur with Louis CK and Scrubs both being great. Oh, and for the more modern UK stuff I dig Big Train, Spaced and The IT Crowd.

i like comedians that are witty and put a spin on what we think is normal.

George Carlin and Bill Hicks comes to mind.

Engrish is funny, Japanese game shows are funny. 

One of my favorite comics is Frankie Boyle. He is way too dark and offensive for most people, but I find him hilarious.

I'd recommend check out Russell Peters.  If you're offended by any racist jokes, though, don't.  You might also want to watch Scrubs, it's pretty funny.  Recently, though, my dad and I have been watching a lot of Entourage.  I can't believe I went so long without watching this show!  It's definitely one of my favourite series on TV!

I like incredibly well-written witty classic stuff but on the other side of the spectrum I like incredibly stupid dumb stuff. I don't like mediocre stuff  which is basicaly things like Little Britian, Catherine Tate and all the American nonsense.

I think British Comedy is the best.

I like jokes and slapstick.

Down to earth social commentary, like Chris Rock.
Old, well-written and choreographed works of Peter Sellers.
And the classic slapstick shenanigans of Laurel & Hardy.

I have no idea what style of comedy I'm into but I think the Persona 4 ER (and everything else GB does) is hilarious. Some of my favorite comedy shows ever are It's Always Sunny in Philadelphia, Frisky Dingo, Futurama and Squidbilles. I don't watch a lot of stand up anymore but my favorite comedian I've seen recently is Jim Gaffigan.