The kids see Krusty do an ad for Mt. Splashmore, a water-themed amusement park. They nag Homer so much that he finally agrees to take them - only to get stuck in a tube at the park because he is too fat. Publicly humiliated, Homer vows to lose weight. While getting his old dumbbells from the attic he finds a series of photos Marge painted of Ringo Starr. Lisa urges Marge to go back to art school to nurture her gift and Marge wins a prize for painting Homer in his underwear, on the couch.
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