Treehouse of Horror XXIII/References

Opening sequence

 * The music in the scenes with the Mayan Indians is based on .

The Greatest Story Ever Holed

 * The segment title is a pun on .

UNnormal Activity

 * The segment title and the segment itself is a parody of .

Bart & Homer's Excellent Adventure

 * The title is a pun on .
 * References to :
 * The segment's plotline is a parody of the movie's.
 * The music in the sequences where Bart travels through time is similar to the movie's soundtrack.
 * The song when Homer sees Marge for the first time which is also their recurring theme, "" by, was played multiple times in the segment.

Trivia

 * The last time world end was referenced in Treehouse of Horror is "Treehouse of Horror X," where the segment "Life's A Glitch, Then You Die" was based on the.
 * This was one of the two Treehouse of Horror episodes to be aired before the World Series, the other one being "Treehouse of Horror XX."
 * So far, this is the earliest Treehouse of Horror to air.
 * The last time Homer videotaped himself speaking with the Flanders' video camera only for it to backfire occurred in "One Fish, Two Fish, Blowfish, Blue Fish."
 * The last Halloween special where Maggie's pacifier saves the day with its plug function was "Treehouse of Horror VI." It also featured a segment which ended with Homer in another dimension and the Lard Lad donut used as a weapon.
 * This is the first time rubbish got sucked into another dimension since the first Halloween special. This time, the dimension's residents had the opposite reaction.
 * This is the second episode where present-Bart meets past-Homer. The first was "Eternal Moonshine of the Simpson Mind."
 * This is the second episode where Milhouse plays a game, which causes disaster. The first being "Das Bus."
 * The opening sequence was the longest opening sequence in the Treehouse of Horror history.
 * Goof: If Marge married Artie instead of Homer, then Bart,Lisa and Maggie shouldn't been born.

Continuity

 * In The Android's Dungeon & Baseball Card Shop, the following objects were seen:
 * The Tic Tac Toe: X v. O poster from "The Squirt and the Whale"
 * Itchy, Scratchy and Poochie dolls (Poochie's last appearance was on "Them, Robot" couch gag, and debut was in The Itchy & Scratchy & Poochie Show
 * The Everyman comic from "Homer the Whopper"