Here are some of mine (it would be a very long list if I included all of them):
Arthur
The Berenstain Bears
Babar
Franklin
Little Bear
Rolie Polie Olie (it's like a 3D Leave It to Beaver!)
Shaun the Sheep
Clangers
Thomas & Friends (especially the early seasons!)
Hey Arnold!
Invader Zim
Rugrats
The Adventures of Jimmy Neutron: Boy Genius
The Magic School Bus
And many more