When Homer, Lenny and Carl ride on top the rolling containers of radioactive material, they sing a revised version of TV series Rawhide's theme song.
Mr. Burns refers to Lenny, Homer, and Carl as "Snap, Crackle, and Pop," the three mascots for the breakfast cereal Rise Krispies.
The idea of Homer panhandling for extra cash is similar to the Sherlock Holmes short story, The Man with the Twisted Lip.
While Homer dances in front of Moe's Tavern, the rhythm he is humming is "The Streets of Cairo" by Sol Bloom. Many mistake it for Take It Off by Ke$ha (this being years before Ke$ha was a well known singer). Later, he sings a butchered version of the song "Mr. Bojangles".
Among the statues of nosy neighbors in the TV Museum are:
Mrs. Kravitz from Bewitched.
Mr. Roper from "Three's Company" and the short-lived spin-off The Ropers.
The car KITT from the TV series Knight Rider is featured in the TV Museum in an exhibit tilted "Things that shouldn't talk... but do". This is one of the two appearances of the car in a Simpsons episode, the other being in the episode The Wizard of Evergreen Terrace.
Other characters are Lancelot Link, Lost in Space, Salem the cat and Mr. Ed.
This episode is last appearance of American actress Isabel Sanford. She would pass away two months later. Her plea for George Jefferson to come home would be sadder in retrospect, as Sherman Helmsley (the actor who portrayed George) died in July 2012.
Additionally, The Jefferson's theme (Movin' On Up) is heard over the closing credits.
Lisa and Bart reference "This Little Wiggy" when Ralph appears as Bart's friend. It seemed Bart forgot about the police master key. However he might have realized about it in the future.
Homer asking the mirror who is the baldest of them all is a reference to Snow White.
Bart is too young to take a flight on his own, he would at least need one adult with him to go. Some airlines allow children of a certain age to fly unaccompanied if a parent is present to see them on the plane.
Part of Bart's pants were a darker shade of blue (because it was wet) but after the scene switched from grandpa it was only one shade of blue.