And Introducing: Apparently the screen acting debut of behind-the-scenes man Jim Mallon as fake Bob so they included an "and introducing" buried in the credits; Frank also gets one but he had at least a few episodes with that credit. Jerry the bug man may piggyback on Mallon's introducing credit.
This is also the episode where Crow picks up the nickname "Art", when Joel introduces him as "Art Crow" as a Shout-Out to Jackie Gleason's curtain calls on The Honeymooners.
Losing His Head: Dr. F, during the Invention Exchange, puts his head into a saxophone.
Recycled: The Series: In a scathing parody of the film's straight use of tropes like Mighty Whitey, Joel and the bots concoct The Fifties-ish Sitcom "My White Goddess", in which the movie's leading lady still demands to be worshipped even after returning to civilization. Bob (played by Servo) returns from the dead as Mike and Greta's wacky, homicidal neighbor.
Running Gag: The snake speaking to the audience. "Hi, I'm Satan."