Kuff gives us the List of 100 top TV catchphrases according to the folks at TVLand.
I agree with Charles that news events should have been exclused and there are a number of things on the list I wouldn't hesitate to strike, but overall It's not a bad list. Still, I can immediately see some glaring omissions:
"Nanu, Nanu!" - Mork and Mindy
"Beam me up, Scotty." - Star Trek
"Damn it, Jim! I'm a doctor, not a ...." - Star Trek
"You're traveling through another dimension..." - Rod Serling's intro to Twilight Zone.
"Crikey!" - The Crockodile Hunter.
And I'm sure there are many more...