Bart's chalkboard gag is a reference to Atlanta losing the 2017 Superbowl. It is also a reference to how many people say that The Simpsons is good at predicting things, for example, them predicting that Trump would become president in "Bart to the Future".
When Homer imagined his family as food, he imagined Bart as a Butterfinger bar. This is a reference to how Bart used to be star in Butterfinger commercials.
Homer quotes Han Solo's line from Star Wars: The Force Awakens about finding the Millenium Falcon again.
The music that plays when Homer begins remembering the chili dogs is "Flower Duet" from either the opera Lakmé or Madama Butterfly.
At the end of the episode, the theme from the movie Chinatown plays.
This episode was dedicated to Sooan Kim, a former Simpsons character layout artist and lead character layout artist, who passed away on January 20th, four weeks before this episode aired. A drawing of him, along with the words "IN LOVING MEMORY SIMPSONS ANIMATOR SOOAN KIM", was shown at the end of the episode.
For some reason, on Hulu, when Skinner tells the parents to pick up kids in South Springfield, the subtitles say Chinatown instead of South Springfield.
When Krusty shows off his new menu items, he butchers the pronunciation of banh mi and pho. This may have been scripted.
Homer and Deuce both thought they were the same age, but both of them remember Homer as a child while Deuce was an adult.