Hard choices, but I ultimately picked Gummi Bears, as it did so much for modern animation and for Disney's rebirth. Without it, wouldn't have Duck Tales, which most say did lead to Disney's second revival in the late 80's/early 90's. Just wish more of GB was on YouTube. Oh, well.

However, secondary nod to the Smurfs, as per the intro of the Smurflings. Sassette was the kick in the pants the show needed, at that point.

And who can forget the Wuzzles?