Season 1 episode 8 (IMDB), episode 9 (Paramount), or episode 11 (Memory Alpha). Anyway, we get a complete copy of Earth, the failed longevity experiment, bonk bonk, and Kirk wrenching a kid off a desktop. Beyond that, no explanation surrounding AN EXACT COPY OF EARTH! Zero, zip, zilch, nada.
Side query: What’s considered the “official” episode breakdown?
Yeah, been meaning to delve into that, but have yet to acquire the hallucinogens necessary to do so.
It’s worth watching through once, just to check that box. It’s definitely a product of its time, and as little animation budget as humanly possible