The original He-man cartoon intro is all him talking and giving basic exposition, except for a sung "He-man!" twice. The Dungeons and Dragons cartoon was all spoken, with them meeting the Dungeonmaster and being given their classes and weapons and meeting Venger. Centurions, the early 1979/80 Flash Gordon cartoon, Battle of the Planets (70s), Dinosaucers, Dinoriders, Blackstar...

I've got (mostly) 80's cartoons on the brain, if you couldn't tell.