Let's see...
Tom & Jerry
Looney Tunes/Merrie Melodies (Bugs Bunny, Daffy Duck, Porky Pig, etc.)
Pink Panther
Scooby Doo
Hong Kong Phooey
Popeye
The Flintstones
The Jetsons
Wacky Races
The Perils of Penelope Pitstop
The Smurfs
The Snorks
Ed Edd n Eddy
Courage the Cowardly Dog
Dexter's lab
Catdog
Hey Arnold
Doug
Rocket Power
Rugrats
The Adventures of Sonic The Hedgehog (the source of the infamous PINGAS meme)
Super Mario World (yes there was actually a cartoon show loosely based on the game)