One of the signs at the subway says "Learn Spanglish", which may represent a new language derived from English and Spanish
On the Past-o-Rama entrance sign, it says, "It's the boom!" This is a reference to the saying "It's the bomb!". As with most of Past-o-Rama, it's probably wrong due to the limited knowledge of the 20th century they seem to have.
Past-o-Rama is a spoof of Futurama itself, and has a caption of its own, "Located on the former side of Brooklyn".
In the Past-o-Rama commercial, Hammurabi says "Dy-no-mite!", a catchphrase of James "JJ" Evans, Jr. (Jimmy Walker) from Good Times.
In Past-o-Rama, a movie title called "Star Wars 9: Yoda's Bar Mitzvah" is seen, a reference to the Star Wars series.
The show in the beginning, "Cop Department", is a parody of Cops.
Flexo's Goatee is a parody of the Star Trek episode "Mirror, Mirror", where the Spock from a parallel universe has a beard.
The Miss Universe pageant contestant Miss Arrakis is a reference to Dune.
When Bob Barker's head asks the crew to guess how much the atom is worth, their responses are in reference to Bob Barker's show The Price is Right.
The 3 second bit of Fry squinting has become an Internet meme.
The strip club Electric Ladyland is named after the third Jimi Hendrix Experience album.
Continuity[]
In this episode, Bender mistakes a telephone booth for a suicide booth while at Past-o-Rama. In "Space Pilot 3000", Fry mistakes a suicide booth for a telephone booth.