Wikisimpsons - The Simpsons Wiki
- The story is inspired by Alison Bechdel's graphic novel Fun Home: A Family Tragicomic.
- The story of a writer-artist collaboration was inspired by the life of Harvey Pekar in American Splendor, which is also referenced by the episode title.
- Sad Girl is inspired by Daniel Clowes' Ghost World.
- Homer references Netflix.
- Little Lulu comics are sold at the The Android's Dungeon & Baseball Card Shop.
- Comic Book Guy has bookends of The Hulk and The Thing.
- There is a statue of Krusty frozen in carbonite, similar to Han Solo from Star Wars in the Android's Dungeon.
- The theme song of The Andy Griffith Show ("The Fishin' Hole") is heard when Homer and Bart go fishing.
- Guthrie Frenel references You're a Good Man, Charlie Brown, the stage musical based on the Peanuts comic strip.
- Kipp Lennon performs a parody of "Infatuation" by Rod Stewart.
- The music playing during the Sad Girl musical is the score of Spider-Man: Turn Off the Dark.
- The episode was dedicated to Tom Petty who passed away on October 2nd, six days before this episode aired.
- A person is dressed as Groot and has Rocket Raccoon on a lead.
- Cosmic Wars is a parody of Star Wars.
- Klingon is a reference to the race in Star Trek.
- A poster of The Mummy is seen.
- Restroom of the Apes is a reference to Planet of the Apes.
- In the "Build a Girlfriend Workshop" booth, the "girl" is posed like Vitruvian Man, a drawing by Leonardo da Vinci.
- A person is cosplaying Aquaman, dragging a tank with a person cosplaying as another Aquaman inside.
- The TARDIS from Doctor Who can be seen.
- A poster for Guts of War XVII is seen, a parody of God of War.
- Chicks With Pix is possibly a reference to "Chicks With Dicks", referring to Shemales.
- Roz Chast is holding a panel, showing her comics, joined by Lisa, Marge, Alison Bechdel, presenting her novel Fun Home and the Bechdel test, and Marjane Satrapi, presenting her comic Persepolis.
- The Simpson family goes to the Springfield Community College. ("Brush with Greatness")
- Badgerine, a parody of Wolverine, appears in the Android's Dungeon again. ("Married to the Blob")
- The celebrities who appeared on the walls in Springfield Sardi's are:
- Lucille Ball ("Little Big Mom")
- Fox Mulder and Dana Scully ("The Springfield Files")
- Conan O'Brien ("Bart Gets Famous")
- James Woods ("Homer and Apu")
- Ron Howard ("When You Dish Upon a Star")
- Humphrey Bogart ("Natural Born Kissers")
- Bette Midler ("Krusty Gets Kancelled")
- Mickey Rooney ("Radioactive Man")
- Tom Hanks (The Simpsons Movie)
- Leonard Nimoy ("Marge vs. the Monorail" and "The Springfield Files")
- Barney Fife ("Simpsoncalifragilisticexpiala(Annoyed Grunt)cious" and "Pranksta Rap")
- Jay Leno ("The Last Temptation of Krust")
- Brooke Shields ("The Front")
- John Travolta ("Itchy & Scratchy Land" et al)
- The Coolsville Comics & Toys shop appears. ("Husbands and Knives")
- A poster for an Angelica Button movie is seen. ("The Haw-Hawed Couple")
- Danger Dog and Stan Lee can be seen. ("I Am Furious (Yellow)")
- People dressed as Trans-Clown-O-Morphs characters are seen. ("Apocalypse Cow")