Okay. Here's were we prove how old I am.
1) Rocky & Bullwinkle and Friends (my favorites here were Fractured Fairy Tales and Mr. Peabody and his boy Sherman)
2) Beany & Cecil the Seasick Sea Serpent
3) The Jetsons
4) Roadrunner
5) George of the Jungle (the original, not the new ones that are out now).
Honorable mentions: Mighty Mouse, Felix the Cat, The Flintstones, Underdog, Heckle & Jeckle, Tom & Jerry.
Oh, and as an historical note: I remember watching the first episode of The Flintstones the first time it was broadcast. I was very young, but I remember it.