Calvinball: Crow and Tom cobble together various leftover board game parts into a board game version of The Unearthly. Joel spends so long explaining the rules, which mostly have to do with how players can lose a turn, they don't actually get to play the game before Commercial Sign comes on.
Hawaiian-Shirted Tourist: Invoked during the Posture Pals riffing, as a kid is shown dressed in this manner while working with his dad on a model plane.
Narrator: Jimmy's father reminds Jimmy when he stands off-balance. An airplane shouldn't stand crooked... So Jimmy remembers: a boy shouldn't, either.
Tom: Nor should he wear tacky Hawaiian shirts.
Hilarious in Hindsight: When the doctor puts on his gloves, the crew makes a joke that they're "Playtex" instead of latex. At the time, Playtex was a manufacturer of lingerie, but now actually does make numerous varieties of rubber gloves for cleaning and hygiene.
Orphaned Punchline: Crow follows Carradine's request to 'retire' with "Why? Are you falling apart?" before excusing himself for using the wrong punchline.
Totally Radical: After a bizarrely fast-paced dialogue scene, Joel and the Bots start talking like old movie gangsters. Eventually, it spreads to the Mads as well, with Frank imploring Dr. Forrester to "do your Leo Gorcey".