The closing credits sequence is in the style that was seen at the conclusion of The Lord of the Rings and Hobbit trilogies that featured several sketches. In addition, Billy Boyd, popular for playing the role of Pippin in The Lord of the Rings trilogy, has an off-screen role in this episode where he performed the end credits song that parodies the song "The Last Goodbye" he previously sang in the end credits to The Hobbit: The Battle of the Five Armies.
Victorian's Secret references both the lingerie store Victoria's Secret, and the character Victorian Greyjoy.
In Moe's, the head of Toothless, the dragon from "How to Train Your Dragon", is on the wall.
Azzlan is reference to Aslan the lion from Chronicles of Narnia.
Krusty's genital "Snerfs" are a VD-like disease, consisting of Smurf-like creatures which throw their hats and sing every time Krusty looks down his pants.
There are many stores in the background. Cold Stone Screamery refers to Cold Stone Creamery. Barns for Nobles refers to Barns & Nobles.
According to Matt Selman, this episode is a love letter to various stories.
"Springfield Splendor" was originally going to be the Season 29 premiere, but for reasons unknown (possibly due to changing the order of episodes), this episode became the premiere instead.
The episode was released early on demand on Spectrum. The reason why is completely unknown, but it shouldn't be released before October 1, which means that releasing an episode early before the scheduled airdate is illegal.
This is the first episode to not show the Gracie Films logo at the end of the credits, due to a still frame of the entire cast of The Simpsons with the Puerto Rico flag to show fellow respect to people living in Puerto Rico, and the country, entirely.
This is the first time to have music composed by Bleeding Fingers Music, after Alf Clausen, who began composing in 1990, was fired on August 30, 2017.
This is the first episode to be named after the title of the series.
The Serfsons were seen battling nobles, and then we see the Serfsons watching the dragon burning down the village, but Maggie isn’t with them, she probably escaped the village or something.
Monster Willie whipping other men turning the wheel at the Springfieldia Human Power Plant is the exact opposite of what occurred in the episode "The Musk Who Fell to Earth", when Elon Musk and Mr. Burns when new plans for the town's electrical needs were devised.