This show marks the first appearance of Sheldon's (Iain Armitage) Arch-Nemesis list. The list in 1989 consists of his brother Georgie (Montana Jordan), Billy Sparks (Wyatt McClure), Matilda Sparks (a mean chicken), NASA Scientist Ronald Hodges (Jason Kravits), and a doctor that gave Sheldon a clumsy tetanus shot.
At the end of the episode, which takes place in 1989, Meemaw is shown trying to talk to the computer via the mouse. In 1986, in Star Trek IV: The Voyage Home (1986), Mr. Scott is handed a mouse that is connected to a MAC and he tries to talk to the computer.
At the end of the episode, when everybody is exploring the new computer, Missy is playing Wheel of Fortune.