You see, there are some crybabies out there — religious types mostly — who might be offended. If you are one of them, I advise you to turn off your set now. — Homer, “Treehouse of Horror III”
The cold opens that precede the action in Treehouse of Horror I, II, III, and V are based on a similar move made by the producers of the 1931 Karloff klassic, Frankenstein.
In that film, actor Edward Van Sloan emerges from behind the velvet curtain with “a word of friendly warning” as to the terrifying nature of the film. Let’s take a look:
Treehouse III, quoted above, also features a hat tip to the intro to television anthology series Alfred Hitchcock Presents, which opened with Hitchcock stepping into his own rotund outline.