The Color Yellow/References

Cultural References

 * The episode title is a reference to the Alice Walker novel The Color Purple.
 * The episode makes reference to movie National Treasure:The Book of Secrets when Lisa tells abut Eliza Simpson and Milhouse shows another diary.And another one is that in both movies Abraham Lincoln does something important in the past(In the episode helps them to Canada and in movie gets assasinated).
 * When Ralph Wiggum steps up to the stage,he then tells a spoof about 2 shows: "The King had dreams! Dreams where Elmo and Toy Story had a party!"

Goofs

 * There is a lack of continuity between this episode and the episode Lisa the Simpson, where it is revealed only the males of the Simpson family are failures, whereas the females are often successful and highly intelligent.
 * The Canadian flag that appears in the episode is not the official flag of Canada until 1965.

Continuity

 * When Lisa goes to the attic, many objects from previous episodes can be seen, including:
 * A Pin Pals picture ("Team Homer")
 * An "I Didn't Do It" T-shirt ("Bart Gets Famous")
 * Homer's Astrolabe ("'Tis the Fifteenth Season")
 * Homer's Spacesuit ("Deep Space Homer")
 * A large model rocket, taped back together ("She of Little Faith")
 * A calendar with Marge posing on the cover ("The Devil Wears Nada")
 * Funzo ("Grift of the Magi")
 * A Princess Penelope doll ("Once Upon a Time in Springfield")
 * The stone head of Xtapolapocetl ("Blood Feud")
 * Homer's Grammy and a Be Sharps record ("Homer's Barbershop Quartet")
 * The statue of a Golem ("Treehouse of Horror XVII")
 * Homer's Mr. Plow jacket ("Mr. Plow")
 * The vibrating chair given to Homer by Herb Powell ("Brother, Can You Spare Two Dimes?")
 * One of Marge's paintings of Ringo Starr ("Brush with Greatness")
 * The upper half of Homer's homemade bear protection suit ("The Fat and the Furriest")

The Color Yellow/Curiosidades