The Girl Who Slept Too Little/References

General

 * Homer acknowledges his mental acumen and memory may be affected by his numerous head injuries.

Previous Episode References

 * As a baby, Lisa powders and diapers herself. Maggie did a similar trick in another episode while staying with Marge's sisters.
 * The music from the couch gag is the same tune as the jockey song from Saddlesore Galactica.

Production Info
This was originally scheduled to air May 15, 2005, as the sixteenth season finale, but due to the changed broadcast date of "The Father, The Son and The Holy Guest Star" it had to be cancelled for that time. There was also supposed to be a song in this episode known as "The Song of the Wildbeasts" but it was cut out for time. It is one of the four bonus tracks on The Simpsons Testify.

Cultural References

 * The title is reminiscent of the 1956 movie The Man Who Knew Too Much starring James Stewart and Doris Day, and more recently, the 1997 movie The Man Who Knew Too Little starring Bill Murray. This is not the first time this title has been parodied; see "The Boy Who Knew Too Much" and "The Dad Who Knew Too Little".
 * The book The Land of Wild Beasts is a parody of Where the Wild Things Are by Maurice Sendak, right down to the artwork.
 * The stamp museum sign "The Fathers (and mothers) of Invention" is a reference to Frank Zappa's first band, The Mothers of Invention.
 * The Simpsons visit a stamp museum featuring stamp posters of Frederick Ives, Katharine Burr Blodgett, Alexander Graham Bell and Elisha Gray, with audio statements about their inventions.
 * The advertising campaign Bart and Lisa watch in the theatre mentioned above is for a restaurant called "The Hillside Wrangler", a parody of Kenneth Bianchi and Angelo Buono who were called the Hillside Stranglers . Part of the Eisenhower Expressway is also called the Hillside Strangler.
 * When Lisa finds Dr. Nick in the cemetery, he puts four severed arms around his body and says: "I'm not Dr. Nick, I am Dr. Octopus!", a reference to Dr. Octopus, the super-villain of the Spider-Man series. Also, he speaks some lines referencing the series, mentioning Spidey (Spider-Man) and Mary Jane Watson.
 * Maggie is watching the Count on Sesame Street.
 * The itchy and Scratchy cartoon has a parody of the musical Cats. Scratchy is watching, and states the show is boring before shooting himself in the head. A dog sitting beside him, hushes is dead body ignoring the fact shes drenched in blood.