Assigned to write a school essay about his "most unforgettable character", Opie pens a paean to his father Andy, while his classmate Arnold does likewise using his own father. Alas, both boys get a failing grade-and their dads, Andy in particular, can't figure out what went wrong. As Opie endeavors to rewrite his paper, a self-conscious Andy works overtime to provide him with "inspiration." A neat and satisfying plot twist caps this episode, which was scripted by Michael Morris and Seaman Jacobs. "Opie's Most Unforgettable Character" was originally broadcast on April 3, 1967. ~ Hal Erickson, Rovi