Used to watch with my dad, "Wacky Races".
I think "Johnny Quest" was the best, but that was more for the "50's-kid, where intelligence, do-it-yourself, Hardy Boys, and a Popular Mechanics" mentality appreciated it more. They really tried to educate kids in that show.
My favorite though, was "TopCat". Something about a poor guy using his wits to create a decent life struck a chord with me back then (nobody had any money back then). When a NEHI soda was a dime and a large Hershey Bar was a nickel, a quarter could go a long way.