This ad appeared in Incredible Hulk Annual #8 (1979):
So allow me some ill-informed and decades-late comments.
Plus, I have to admire that even though they showed his picture, Aquaman can't even get listed in the copy. Even in 1979, they knew...
Also worth noting, that in the pre-merger mania and pre-discovery of corporate synergy era, ABC had no problem running both DC and Marvel shows. You wouldn't see that today, by golly.
This same comic had an ad for CBS' Saturday morning line-up, which featured Mighty Mouse, Bugs Bunny, Popeye, Tarzan and Batman. What a wild, wacky world...
And then there's this:
Seriously, I hate Scrappy Doo...