Full House - Did I Graduate or Did I?
In one episode of Full House, Jesse reminisces about his old girlfriend Carrie(played by Erika Eleniak in the episode) and when having a memory of her, they show the gymnasium with a banner of Class of '80. Jesse rides in on his bike and Carrie says he shouldn't be riding in school to which Jesse's reply is "I graduate tomorrow, what'll they do, expel me. Ok, in the episode where DJ needs Jesse's help with her "Stay in School" campaign, Jesse says he can't help because he didn't stay in school, he's a dropout.
Episodes shown on ABC Family or Nick @ Nite