The Great Train Wreck/References

Continuity

 * Milhouse asks Bart if he's jealous because his father is a train engineer. Bart reminds Milhouse that his father drove the Monorail and that it nearly killed the whole town. He even points to wreckage of the train and tracks, referring to the events of Season 4 episode "Marge vs. the Monorail"

Goofs

 * When Bart point to the Monorail it is seen anchored to the giant donut being held by Lard Lad. In the episode, however, Homer anchored the train to a giant donut on top of the shop Donuts.