"Good-bye" is the twentieth episode of the third season of The Wonder Years and the forty-third episode overall. "Good-bye" aired on April 24, 1990 on the ABC network. The episode revolves around the relationship between Kevin Arnold and his math teacher, Mr. Collins. Mr. Collins pushes Kevin to succeed in math. Kevin becomes antagonistic towards his teacher when he feels Collins is ignoring him, only to become regretful when tragedy befalls Mr.