The Beatles

The Beatles were a rock/pop group that had its popularity in the U.S. in 1963 to 1970. In the later seasons of Arthur, references to The Beatles were made.

The references are:
 * I Wanna Hold Your Hand: The song of the same name.
 * Buster Baxter and the Letter From The Sea: "Do Octopuses have gardens?" A reference to "Octopus's Garden."
 * In My Africa: A clear reference to The Beatle's album, Abbey Road. Brain's cousin Shake is possibly a reference to the character of the same name in the Beatles' film "A Hard Day's Night."
 * Muffy and the Big Bad Blog: The name of Francine's and Muffy's jointly owned blog is called "She Said, She Said." This is the title of a song from the album Revolver.
 * The Agent of Change: Binky mentions a character from the movie "Trucks" named "Rita the Meter Maid." This is a reference to the song "Lovely Rita," a song off of the album called Sgt. Pepper's Lonely Hearts Club Band.
 * The earliest Beatles reference can be found in the episode "Arthur's Spelling Trubble." When Arthur is reading his dictionary, one of the entries is called "Abbey Road."