S19E07 Husbands and Knives
A new comic store opens in Springfield, which drives The Android's Dungeon out of business. Marge uses the space to open a gym for regular women, Shapes. Shapes becomes a runaway success. When Homer accompanies Marge on a business trip, he meets a group of handsome, muscled men. These men insist that Homer get into shape, because otherwise Marge will leave him. In hopes of making quick changes to his physique, Homer turns to a plastic surgeon.