20. Whose Line Is It Anyway?

Whose Line Is It Anyway? Gave everyone around the world who wasn't doing improv comedy their first taste of improv comedy. 4 improv actors gain points that mean nothing by performing hilarious short form improvisation. Whose Line is yet another example of a show that was brought over to the U.S. from the U.K., but then how much of an improvised show can you really take anyways?

19. Chappelle's Show

A show so good it can drive a man insane! Despite the controversy surrounding the show's final season, Chappelle's Show is still some of the most poignant sketch comedy around today. The ratio of classic sketches to length of the show's run easily earns Chappelle's Show a spot among the greats. I'd also like to take a moment here to note that I had sex with Katy too.

18. The Colbert Report

To call The Colbert Report a spinoff does the program a grave disservice. Sure Colbert's character comes straight out of his appearances on The Daily Show, and sure the basic formats are the same, but did Jon Stewart form a Super PAC? I didn't think so. Matchpoint to Colbert. America wins.

17. Looney Tunes

Believe it or not, the Looney Tunes have a long and storied history before they battled those evil Monstars with Michael Jordan in Space Jam. The "tunes" started off as animated promotional tools for Warner Brothers' collection of music to be shown in theatres in the 1930's and steadily rose to directly rival Disney's own animated offerings. Sure there may be a whole lot of racial stereotypes in some of the "tunes," but have you ever seen South Park?

16. Malcolm In The Middle

Being a middle child is almost as tough as being Frankie Muniz, so how must Malcolm feel?? A household of 4 (later 5) boys is ripe for comedy for sure, if you find comedy in pent up teenage angst expressed through aggressive bullying or the psychological defenses built up to defend against such aggression.

15. The Fresh Prince of Bel-Air

This is a story all about how Will Smith's life got flipped and turned upside down. Fortunately for the real life Mr. Smith, this show turned him right side up, transforming him from a bankrupt emcee into a T.V. star who would become one of the most powerful actors in America. Lucky for us he didn't forget his rap roots though. What kind of a world would it be if we never got jiggy with it?

14. 30 Rock

It seems like a no-brainer that a behind the scenes look of SNL would be ripe for a sitcom. Oops, did I say SNL? I meant TGS…. Anyways, 30 Rock's colorful cast of characters provides the perfect mixture of celebrity absurdity, self-loathing, and corporate shenanigans for a show about showbiz. And in case you didn't know, meat is the new bread.

13. It's Always Sunny In Philadelphia

It's Always Sunny is a testament to struggling actors everywhere. If you can't get any good roles, just make some up, and eventually Danny DeVito will show up and propel you to stardom. And yes by good roles I mean egotistical, treacherous, lunatics with no kind of morality whatsoever.

12. That '70s Show

Just when it seemed like everything had been done in a sitcom, someone decided it would be a good idea to base one on an entire decade. The people agree that this was a pretty good decision as long as that decade is not the '80s.

11. How I Met Your Mother

Who knew that a normally boring story that parents (usually) tell their kids could turn into one of America's favorite sitcoms? It's been 6 years and those poor kids still don't know how their father met their mother, but who cares? The rest of us get to sit back and watch Neil Patrick Harris as a serial womanizer. Enjoy that couch, children.