Come to think of it it's never crossed my mind.
Nope. Not even once. That I can recall.
Of course my memory may not be as good as it was, I might have been curious at one point, but the "MST3K" is a deal-breaker. Haven't the foggiest idea as to that, but I could know a Mike Nelson and not know he was involved with it. If I knew a Mike Nelson, which I don't.
Now Ray Nelson, he and I went to school together, were best "buds", I've wondered about him from time to time. Then again the "MST3K" kind of puts the kibosh on that.
Sorry I can't help.
Arf