"Star Wars: Return of the Jedi" was released in May, 1983. Wresting is a winter sport in Pennsylvania high schools, and its season would be over by May.
In this episode, "Return of the Jedi" was coming to theaters for the first time ever, which would set the episode in 1983, yet a NES Advantage joystick is sitting on top of a television behind Adam when he is blackmailing Erica into joining him. The Nintendo Entertainment System wasn't released until 1985 and the NES Advantage didn't come out until 1988.
The Han Solo is Indiana Jones fan theory only recently emerged in 2010 not the 1980s.
The Kenner "The Force" toy lightsaber with a green blade that Adam plays with was released in 1983.