Season 2: Episode 34: The Glee Club
Screech has to meet his girl's parents, and no it's not Lisa, it's Violet. He doesn't make the best impression, and Violet's parents force him to stay away from their daughter. He quits the Glee Club, because Violet's in it, along with the rest of the gang. Everything seems hopeless, but when Violet freezes on stage during a performance, Screech steps up and saves the day, and wins Violet's parents heart.