The joke was at the beginning--within the first 5 minutes--of season 5, episode 20, which first aired 18 December 1993.
The joke doesn't make any sense--to me, at least--but given that the MST3K reboot during the covid era--produced by Joel himself--was a gay woke-fest, you have to wonder. Maybe Joel knew something we didn't at the time.
Edit: It is a Mike Nelson episode. Immediately after the Epstein reference, Mike is ripping up a pair kid's underwear (briefs).
Seems the "vampire ball" has been going on for centuries.
I bet Epstein is the low man on the totem pole not the head honcho.
The Rothschilds family were bank rolling Epstein (was in the released files). We know who the top guys are.
Elizabeth Bathory got the idea from someone.