Though Michelle joined the sliders in the time whirlpool at the end of the previous episode (season 2 episode 5), she is nowhere to be seen and is never mentioned again.
On both Hoover Prime and Hoover Double Prime, U.S. President John F. Kennedy was assassinated by Julius Rosenberg and his wife Ethel Rosenberg on November 22, 1963. J. Edgar Hoover succeeded him as the 36th President of the United States. He abridged the Constitution and declared martial law, rendering the United States a police state by 1996.
Written for the first season but delayed because Fox network put a ten-episode limit on it.
On Hoover Prime, women are capable of growing facial hair.
On Hoover Double Prime, Alcatraz Federal Penitentiary is still open in 1996. It houses numerous political prisoners including Robert F. Kennedy, Martin Luther King and Sam Kinison.