The War of Art (The Simpsons) on the conversation from Bart's treehouse and tells his parents. The Van Houtens publicly shame the Simpsons for their secrecy, prompting a town-wide division of opinion. As the auction begins, Dawn, a former lover of Kirk's, arrives and claims that he took the painting from her. The auction is suspended until its ownership can be established. Kirk tells Homer that he bought the painting on the island of Isla Verde, home to an artists' community. Homer and Lisa travel to the café at which Kirk made the purchase in order to corroborate Kirk's account and the legality of Homer's purchase.
The Simpsons show. The celebration ended on January 10, 2010 (almost 20 years after "Bart the Genius" aired on January 14, 1990), with "The Simpsons 20th Anniversary Special – In 3-D! On Ice!", a documentary special by documentary filmmaker Morgan Spurlock that examines the "cultural phenomenon of "The Simpsons"". As of the twenty-first season (2009–2010), "The Simpsons" became the longest-running American scripted primetime television series, having surpassed "Gunsmoke". On April 29, 2018, "The Simpsons" also surpassed "Gunsmoke"s 635-episode count with the episode "Forgive and Regret." "The Simpsons" has won dozens of awards since it debuted as a series, including 31 Primetime Emmy