Best:
Seinfeld - absolute genius. From the writing and acting to everything in between this show is perfection. All the extras on the show were bloody hilarious...Abu, Soup nazi, Newman, Puddy, Petermen, Mr Litman, Mr Bookman, Jackie Chiles, Georges parents, Jerrys dad, Elaines father etc. The extras on Seinfeld are funnier than just about all of the leads in most other comedies.
Curb Your Enthusiasm - Absolute GOLD. Larry David is one funny bugger and his humour is pretty much the same as mine. Again, the extras are great. Jeff, Wanda, Susie, Richard Lewis, Krazy Eyez Killa, the hooker he picks up in order to travel in the car pool lane lol....
South Park - Cartman rules. Pulls no punches and makes fun of everything. Also very clever.
Simpsons - in its prime during the 90s it was brilliant. Again another clever show. I like witty shows which challenge you to understand every single joke, some less obvious than others.
A host of British comedies - the Royal Family/Bottom/Young Ones/One Foot in the Grave - hard to seperate them. They're all classic british comedies with memorable characters.
Worst:
Family Guy - toilet humour. Sucks balls.
Frasier - cant stand it...a show full of annoying pansies.
Will and Grace/Dharma and Greg - too over the top. The acting is so forced and they're basically the more popular of a huge bunch of generic, mundane US comedies.
All those sh*t, overrated comedies from the 60s/70s - Bewitched, Gilligans Island and a bunch of others that my mind has blocked out. You can find them all on TV1.
Sabrina the Teenage Bitch - f**k i hated that show.