At Long Last Leave

"At Long Last Leave" is the fourteenth episode of the twenty-third season of the American animated television series The Simpsons, and the 500th episode overall of the series. In the episode, the Simpsons discover that the inhabitants of Springfield have grown tired of them and have secretly decided to throw them out of the city. After being evicted from Springfield, the family members end up in a rugged place without rules and regulations called the Outlands. There, they briefly come across their neighbor Julian Assange, who created WikiLeaks. Assange guest-starred in the episode as himself and recorded his lines over the phone while under house arrest in Britain, while waiting for the results of Assange v Swedish Prosecution Authority.

Michael Price wrote "At Long Last Leave" without the intention of it becoming the 500th episode and felt honored when it was selected for the milestone. Television critics have given the episode generally positive reviews, particularly praising it for a montage of the series' couch gags that was included in the opening sequence. The storyline of "At Long Last Leave" has, however, received criticism for being similar to the main story structure previously done in The Simpsons Movie.

During its original airing on the Fox network in the United States on February 19, 2012, the episode was watched by about 5.77 million people and received a 2.6 Nielsen rating in the demographic for adults aged 18–49.

Before this broadcast, Fox promoted the 500th episode milestone by arranging an attempt to break the Guinness World Record for longest continuous television viewing. A hundred fans of The Simpsons were invited to watch a marathon of the series' episodes, starting on February 8, 2012. The record was broken 86 hours and 37 minutes later on February 12, 2012, with only two fans left watching the marathon.