It's said that this episode is the main reason the show may never see DVD or Blu Ray or Streaming because of the music rights of Beatles, Rolling Stones, Bad Company and David Bowie songs.
The plot of this episode, where young people are in a world without The Beatles and become famous singing their songs, would be the plot of the film Yesterday (directed by Danny Boyle) decades later. In fact there's even an online article about this episode foreshadowing that film.
The episode spoofs the religious "backmasking" craze, where "hidden messages" could be heard when playing a rock album backwards. Even older songs like Led Zeppelin's Stairway to Heaven were being backmasked in this decade.
The song "Bop Girl" became a hit for Australian pop singer Pat Wilson. Her video for the song featured a young Nicole Kidman as one of her bridesmaids.
Jonna Lee and Sarah Buxton (who played high school friends) were both in the Michael Landon biopic Sam's Son.