Yep, King Koopa -- that is, not Bowser but his hairless DIC-universe alterego -- hosted a half-hour live show as a spin-off to The Super Mario Bros. Super Show!, which also featured live action intros to the cartoons. But while Super Show had Captain Lou Albano (R.I.P.) and Danny Wells (R.I.P.) introducing licensed Nintendo-themed cartoons, Kool Kartoons had Koopa (Cobra Commander voice actor Chris Latta, also R.I.P.) pushing public domain animated shorts, which must have seemed neither kool nor cool by comparison. According to Wikipedia, the show aired only during the 1989 holiday season in the greater Los Angeles area on KTTV Fox 11, though that was enough to earn it a local Emmy nomination. (I hope the nom was for excellence in terrorizing sensitive children via grotesque masks)
Apparently the kids in the audience got to take the T-shirts home with them, but they had to turn in the Koopa Troopa helmets after taping completed, which makes me wonder if any of them are still floating around in L.A. A Google search, alas, has turned up nothing. I'd imagine that most thrift stores that actually had these weird, flesh-colored turtle helmets sitting around wouldn't even know what the hell they were supposed to be.
At least one kid from Whittier got a Power Glove out of it, though. That's something.
I mean, someone should have gotten something out of this -- you know, aside from nightmares about a real-life malformed Koopa forcing you to watch public domain cartoons.
Discussion question: Should 1989 be far enough along, culturally speaking, that people should know that switching out the letter "C" for the letter "K," especially in alliteration, has some nasty associations?