The Simpsons is an American adult animated sitcom created by Matt Groening for the Fox Broadcasting Company. The series is a satirical parody of a middle class American lifestyle epitomized by its family of the same name, which consists of Homer, Marge, Bart, Lisa and Maggie. The show is set in the fictional town of Springfield and parodies American culture, society, television and many aspects of the human condition.
The Mets first appear in the episode Much Apu About Nothing, the episode is the 23rd of the 7th season. In the episode the character Apu tries to be more like an American where he wears a Mets shirt.
In the episode MoneyBart, the 3rd of the 22nd season. Homer mentions the Mets when he was talking about priorities, Homer mentioned the 1969 Mets, who won the World Series and mentioning that nobody cares about Ron Swoboda's wife and kids, including Ron Swoboda.
Shea Stadium was mentioned in Moonshine River the first episode of the 24th season, when Bart told Homer that they could go to New York now that Homer's two least favorite buildings had been destroyed (Old Penn Station and Shea Stadium).