It's been a while since I've posted an Aquaman cartoon, so why don't we take a swim down memory lane with the King of the Seas (Marvin Miller, ex-The Millionaire) as he battles the Brain and his sonic brainwashing machine, which, as you'll see, leads to a brief scrum with Aqualad (Jerry Dexter).
"The Brain, The Brave, and The Bold" could've stood a sequel, but Brain (narrator Ted Knight) was a 1-shot villain, as were most of the foes in the series. Black Manta and Fisherman did come from the comics, and, as only one season of episodes was produced, it'd be a few years before we'd see Manta again. Fisherman? Not so much.
Edit: 6/29/14: The original video was deleted because the poster lost his account. In its place, we have a near complete half-hour. In addition to "The Brain, the Brave, & the Bold", we also present "The Satanic Saturnians", fish-like creatures trying to turn Earth into more of a water-based planet. Like that's going to happen: