American History X-cellent/References

Trivia

 * Although Mr. Burns has been replaced or substituted by many characters before, including Lenny and even Homer, this episode marks the first time that Smithers himself replaces Mr. Burns as owner of the Power Plant.
 * This episode also implies that Smithers might have become openly gay, given Homer's comment about knowing about Smither's tendency to "like his loafers light" as well as flashing Smithers twice, with the first time suggesting Smithers to "use that image any way [Smithers] would like."
 * This episode shows Sideshow Bob being in the washing machine and the dryer, put there by a laughing Snake who was Bob's friend and cell mate in the first few seasons, suggesting that either he stopped being Bob's friend, or it was a practical joke.
 * Lisa's ant farm is modeled after the Uncle Milton style ant farms.