answers: 29
context: According to long-time writer Jon Vitti, Meyer usually invented the best lines in a given episode, even though other writers may receive script credits. Each episode takes six months to produce so the show rarely comments on current events. Credited with sixty episodes, John Swartzwelder is the most prolific writer on "The Simpsons". One of the best-known former writers is Conan O'Brien, who contributed to several episodes in the early 1990s before replacing David Letterman as host of the talk show "Late Night". English comedian Ricky Gervais wrote the episode "Homer Simpson, This Is Your Wife", becoming the first celebrity </s> the film to be "a disappointment". The film earned $30,758,269 on its opening day in the U.S. making it the 25th-highest, and fifth-highest non-sequel opening day revenue of all time. It grossed a combined total of $74,036,787 in its opening weekend on 5,500 screens at 3,922 theaters, reaching the top of the box office for that weekend. This made it the tenth-highest revenue of all time, for an opening weekend in July, and highest among non-sequels, and the highest animated TV adaptation of all time. This outperformed the expectations of $40 million that Fox had for the release. It set </s> Oregon, the city where he grew up. The name "Springfield" is a common one in America and appears in at least 29 states. Groening has said that he named it after Springfield, Oregon, and the fictitious Springfield which was the setting of the series "Father Knows Best". He "figured out that Springfield was one of the most common names for a city in the U.S. In anticipation of the success of the show, I thought, 'This will be cool; everyone will think it's their Springfield.' And they do." When producer James L. Brooks was working on the television variety show
question: how many seasons is there of the simpsons