The audience learns the modern origin of the Tannen family's catchphrase insult, "Butt head." Biff Tannen's great grandfather, a Confederate officer in the Civil War, called his enemies "buttocks brains" but changed it to "butt head" after being corrected by one of Doc Brown's sons. That era's Tannen said, "Butt heads... I like the sound of it."
In the episode Marty wear the same cowboy suit from the Back to the Future 3 movie.
Verne starts to sing "53 bottles of pop on the wall" with is a spoof to the song "99 bottles of beer on the wall".
Marty makes a reference to Axl Rose, lead singer of Guns N' Roses
Jules makes a repair to the DeLorean - but the motor is in the front of the car. In real life (and in the three films) the motor is in the back of the DeLorean.
This episode was released on the VHS entitled Back to the Future: Clara's Folks and Brothers.
Marty makes a slight reference to the events of Back to the Future, when he interrupted his parents' first meeting.
Debuted May 31, 2003 on the Fox Box.
The wagon train leader is, of course, a parody of famed Western movie actor John Wayne.
Yellowstone National Park is the United States' oldest national park, founded in 1872.