Simprovised/References

|General Homer Live References/Trivia Appearances Credits 

Cultural references

 * The episode title is a play on the word "improvised."
 * "22nd City" is a reference to famous improvisational group , which refers to Chicago but here shows how far down Springfield is on the improv list.
 * When the leader of the improv class answers Homer's questions with "Yes! Annnd?" he is demonstrating the two primary rules of improv: always agree with the premise; then extend it.
 * Homer references.
 * The same night the episode aired, in the episode of Family Guy, Chris Griffin quoted in a speech too.
 * Homer dreams of ALF.
 * Homer and Marge reference Frankenstein and the.
 * Homer holds a copy of Truth in Comedy: The Manual for Improvisation by, and.
 * Lisa and Moe mention Barbra Streisand.
 * Homer wants Meryl Streep to play him in a movie.
 * Springfield Fringe Festival is a reference to the.
 * Comic Book Guy is dressed as Henry VIII.
 * He is holding a turkey drumstick in his left hand, a reference to the urban legend that there exists a portrait of Henry VIII holding a turkey drumstick.
 * His companion is dressed as.
 * The stand "Luigi's Medical Marinara" is a reference to.
 * The stand for "Blue Bronco Energy Drink" is a reference to.
 * The person seated next to label "Philosophy: " is Ayn Rand.
 * On the cover of "Treehouse Beautiful" magazine (a reference to "" magazine), Ralph is dressed as Tom Wolfe, in white suit.
 * The music heard as Bart looks through the spyglass at the neighbors is the from the opera  by.
 * The treehouses shown as part of the Historical Treehouse Preservation District:
 * A gleaming metal curvilinear treehouse designed by Frank Gehry.
 * A treehouse in the style of a medieval French cathedral, with  and.
 * The house from , which appears to be floating in air like in the movie, is shown to be suspended from a tree by a rope.
 * The music heard over the historical treehouses is from  by.
 * When Homer finds the cookies Marge has discarded next to the tree and he says "The Keebler elves are real" he is referring to cookies made by the, whose advertising claimed they were made by elves living in a hollow tree.
 * "Down-N-Out Burger" is a parody of.

Continuity

 * The Treehouse of Horror series is referenced in Ralph's treehouse (Treehouse of Horrors: The Complete Collection is shown on a shelf).
 * Marge's carpentry skills are also put to use, and subsequently undervalued. ("Please Homer, Don't Hammer 'Em")
 * Bart's treehouse gets a makeover. ("Old Yeller-Belly")

Trivia

 * In the last three minutes of the episode, Homer was "Live-voiced" (by Dan Castellaneta) and answered questions fans asked him on the phone. During the show, Homer answered live on Twitter and Facebook to fans posts too.
 * In the season 8 episode "The Itchy & Scratchy & Poochie Show", June Bellamy says "very few cartoons are broadcast live". Ironically, 19 seasons later, part of "Simprovised" was broadcasted live.
 * The UK airing of the episode, scheduled to air at the same time as US' was pulled at the last minute.
 * This is the 2nd consecutive episode in which the house from  appears, having appeared in the previous episode a week before.

Goofs

 * At the Springfield Fringe Festival, Lisa's tie changes from gray to blue, and later back to gray.
 * At the dining room, when Homer ask Maggie to pass the gravy, and pour on his food, his neck is animated behind his shirt collar and his left arm behind the sleeve.
 * There are two Luanns in the crowd at the Springfield Fringe Festival.