In The Wild World of Batwoman, the titular heroine initiates a seance in an attempt to find the movie's villain, only to get interrupted by a stereotypical Chinese spirit, complete with "Ching-chang"-type speak. When it was featured on Mystery Science Theater 3000, Mike and the Bots are horribly offended and Mike actually apologizes for the scene after it ends.
Batwoman "I have to inform you that no-one here is familiar with Oriental languages."
Tom Servo "Hey, that's Asian languages, sister."
- MST3K ran headlong into another example with the short "Catching Trouble", a 1936 documentary about a hunter who catches animals for zoos. The narration makes it clear that he's a man among men who bends nature to his will; Joel and the Bots, however, just see a cruel bully harassing innocent animals, and cheer for the animals to escape. And that's not even getting into his "loyal Seminole" sidekick...
- Generally MST3K frequently riffs on the mores and attitudes portrayed in its subject films.