Treehouse of Horror XXIII/References

Opening sequence

 * Kang's pirate costume is a parody of, while Kodos' fairy costume is a parody of.
 * The music in the scenes with the Mayan Indians is based on .

The Greatest Story Ever Holed

 * The segment title is a pun on the film .
 * This segment has the third title that makes a reference to this movie; the others episodes are "The Wettest Stories Ever Told" from season 17 and "The Greatest Story Ever D'ohed" from season 21.
 * The segment is a reference to the.
 * Comic Book Guy throws a DVD copy of the film  into the black hole.

UNnormal Activity

 * The film series  is punned in the title and parodied throughout the segment.
 * Although, the film series deals with ghosts rather than demons

Bart & Homer's Excellent Adventure

 * The title is a pun on .
 * 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.
 * When Bart travels back in time he passes by movie posters for a large number of James Bond films.
 * When Bart travels back in time he passes by movie posters for a large number of James Bond films.

Credits

 * James "Haha, the Devil Bought Facebook" Brooks refers to Facebook.
 * simonsam@twitTERROR refers to Twitter and Sam Simon's Twitter name.
 * Humatt Selmanpede refers to .
 * The Phatman of the Opera is a reference to .
 * Uncle Festerbrook is a reference to of .
 * Brian Death Knelley is a reference to a.
 * Time and Relative Don in Payne is a reference to the TARDIS (Time and Relative Dimension in Space) from Doctor Who.
 * 23 Shades of Yellow is a reference to .
 * Th-Th-Th-That's Al, Folks! is a reference to 's catchphrase, "That's all, folks!" from Looney Tunes.
 * Night of the Living Dead-Gerly is a reference to .
 * Don of the Dead Barrozo is a reference to .
 * Chris Ledesma is credited as "Simpsons Music 500", the name of his blog.
 * Katniss Everdeen Adamson is a reference to the character from The Hunger Games.
 * Pross Whedon is a reference to.
 * A-Mike-Rican Horror Scully is a reference to .
 * Mothra B. Anderson is a reference to Mothra.
 * Re-Animator Raynis is a reference to .
 * "Tapping as Fast as I Can" Sirkot is a possible reference to The Simpsons: Tapped Out.
 * Dchungo Unchained is a reference to .
 * Here Comes Honey Bon Bon is a reference to .
 * Norman "Bates" MacLeod is a reference to the character Norman Bates from the movie .

Goofs

 * In "The Greatest Story Ever Holed", Principal Skinner gets sucked into the black hole twice.
 * In the shot of the Black hole aliens with the Springfieldians in the background, Legs has Louie's colors and Arnie Pye has Gil's.
 * Young Homer is seen walking past in the present
 * In "The Greatest Story Ever Holed", Milhouse's eyebrows are red (see picture on right).

Continuity

 * The third story contains a number of references to the Season 2 episode "The Way We Was", most prominent is the detention room scene where Marge and Homer initially fell in love.