The Boys of Bummer
The Simpsons Season 18 Episode 18 (04/29/07)
Bart becomes a hometown hero when he makes the game-winning catch at his Little League game, sending the Springfield Isotots to the Little League championship for the first time ever. However, Springfield turns on him when he drops an easy pop fly in the bottom of the ninth, losing the game for his team. Meanwhile, Homer gets a job at Costington's Department store as a mattress tester.