What is the name of the the television show where Treehouse of Horror IX is one episode of an American animated television series which is a satire of a middle class American lifestyle epitomized by its family of the same name ?
Treehouse of Horror IX: "Treehouse of Horror IX" is the fourth episode in the tenth season of the American animated television series "The Simpsons". The Simpsons (season 10):  "The Simpsons" is a satire of a middle class American lifestyle epitomized by its family of the same name, which consists of Homer, Marge, Bart, Lisa and Maggie.
The Simpsons