"Brush with Greatness" is the eighteenth episode of "The Simpsons"' second season. It originally aired on the Fox network in the United States on April 11, 1991. In the episode, Marge enrolls in an art class after Lisa encourages her to revive her former interest in painting. When she wins first prize in a local art competition for a portrait of Homer on the couch in his underwear, Mr. Burns commissions her to paint his portrait. In the subplot, Homer is determined to lose weight after getting stuck in a water slide at an amusement park.