Synopsis by Mark Deming
While no one has ever accused Homer Simpson (voice of Dan Castellaneta) of being an intellectual heavyweight, one day he finally tires of people suggesting he's stupid and decides to enroll in an adult education course. He soon discovers, though, that most of the classes he's interested in are being taught by family and friends, and he's too intimidated to attend. Instead, Homer signs up to teach a class of his own on how to have a successful marriage; however, since he doesn't have much to say, most of his students look bored to tears until he starts telling secrets about his wife, Marge (voice of Julie Kavner), including the fact that she dyes her hair and gets turned on when Homer nibbles her elbow. When word of this gets back to Marge, she's understandably furious, and orders Homer not to talk about her in class. But the next time Homer runs out of material in class, he relapses into stories about Marge, and she kicks him out of the house. Marge begins to seriously consider following the advice of Reverend Lovejoy (voice of Harry Shearer) and divorce Homer, while Homer moves into Bart's tree house, desperate to win his wife back. "Secrets of a Successful Marriage" was first aired on May 19, 1994.