Kelso: Easiest money I ever made. They paid me fifty bucks for my underpants navy.
Hyde: You mean your cordoroy commandos?
Fez: Yeah, your team from the inseam.
Eric: Your Battlepants Gallactica.
Eric refers to Kelso's "donation" as "Battlepants Galactica." This episode is set on or around Valentine's Day, 1978; Battlestar Galactica did not premiere until September 17, 1978.