Dr. Hibbert says that Hugo was "too crazy for Boys Town."
3rd segment title "Citizen Kang" is named in reference to this movie.
Nicholas Van Ryn says he could be hiding an insane twin brother in the attic, which is what the family do in "The Thing & I" segment.
there is a scene of an UFO crashing into the Capitol dome
End credits: "Norman 'Bates' McLeod"
Opening credits: "The Incredibly Strange Creatures Who Stopped Living and Became Ken Keeler, Dan Greaney, David S. Cohen"
The alien 'Kodos' is named in reference to an alien from this episode of Star Trek.
The alien 'Kang' is named in reference to an alien from this episode of Star Trek.
End credits: "Domi 'Blackula' Braud"
Homer, I Hardly Knew Me is in the library.
Cartman gets his own civilization of little creatures who see him as their god, then Butters goes into great detail about how they already did that on this episode of The Simpsons
"Don't blame me, I voted for Kodos." sign seen
DVD compilation entitled The Simpsons Treehouse of Horror featuring episodes from series reviewed + footage used
A clip from this episode is shown.
"The Thing and I" is #9. "Citizen Kang" is #2. "The Genesis Tub" gets an honorable mention.
Footage is shown in the "Episode 666" closer before the end credits.
"The Thing and I" is #17. "The Genesis Tub" is #12. "Citizen Kang" is #4.
Lisa becomes mistaken for God by a tiny civilisation just like in this episode of the Twilight Zone
Homer expects to be probed when abducted, but Kang tells him they've moved on to other areas of research.