On Feb 9, 1997, The Simpsons became the longest running prime-time animated series in the US, surpassing what ABC show that ran from 1960 to 1966?
The Simpsons (franchise) most of the first three seasons. In 1990, Bart quickly became one of the most popular characters on television in what was termed "Bartmania". On February 9, 1997, "The Simpsons" surpassed "The Flintstones" with the episode "The Itchy & Scratchy & Poochie Show" as the longest-running prime-time animated series in the United States. In 2004, "The Simpsons" replaced "The Adventures of Ozzie and Harriet" (1952 to 1966) as the longest-running sitcom (animated or live action) in the United States. In May 2007, "The Simpsons" reached their 400th episode at the end of the eighteenth season. Hallmarks of the show include
The Simpsons (season 21) technically counts as a component of the 20th production season (and of the 21st broadcast season). It does not, however, count towards the series' official animated episode count (i.e., it is not episode 452). The Simpsons (season 21) "The Simpsons" twenty-first season aired on Fox from September 27, 2009 to May 23, 2010. It was the first of two seasons that the show was renewed for by Fox, and also the first season of the show to air entirely in high definition. With this season, "The Simpsons" established itself as the longest-running American primetime television series surpassing "Gunsmoke". The season