In the comments section, someone going by Seg links to a Splitsider interview with Moore and the creators of the show, James Bethea and Karim.
On the so-famous-somebody-made-a-montage-of-it song-and-dance silliness, the piece has this to say:
And there’s his rather — at times — goofy antics (which he also told me he can now look back on and laugh about, wondering "what kind of crack was I smoking," explaining to me that he only would so indulge when he felt the kids were freaking out so bad about being on a nationally televised show that if he was weird enough, nothing they could do would embarrass them).
There's some fascinating stuff in there -- I never thought about the logistical challenge of the simple four-directional decision tree for Mikey's movements on the game board. Dragon's Lair was out nearly a decade before Nick Arcade aired, but of course there's a difference between burning LaserDiscs for mass distribution and having one put together especially for an episode of a game show. Or at least there was 20 years ago; you can do all that shit on a phone now.
Other interesting subjects: making sure the girls on the show were comfortable; not realizing Moore was the only African-American game show host on TV at the time; the surprising ease with which they convinced the major publishers to send them games, even betas.
Those betas, of course, have become important to the collector community; most notably, the Sonic 2 prototype, which made its way into the wild some 14 years later. It includes the Hidden Palace Zone, which was teased in magazine previews but didn't make it into the final version of the game (causing, as you might expect, all manner of proto-Internet rumors in its day), and contains a whole lot of leftover material from the original Sonic, proving that Sonic 2 was built on top of the Sonic 1 code.
A silly little show, probably mostly forgotten -- funny how cutting-edge the thing actually was.
(And I don't know about you, but I was singing "Adjust that score and play some more, adjust that score and play some more..." before I pressed Play.)
(Also funny: "Fillmore", by coincidence, is the name of the first area on Act Raiser -- which was featured on Nick Arcade.)