Santa's Little Helper prompted satires of contemporary dog culture, from Barbara Woodhouse's authoritarian training methods [in "Bart's Dog Gets an F"] to Lassie's flawless service to the status quo [in "The Canine Mutiny"]." Although cast member Dan Castellaneta occasionally voiced Santa's Little Helper for bit parts, American voice artist Frank Welker most often provided the sounds of the dog and other animals on the show from "Bart's Dog Gets an F", which aired on March 7, 1991, to "Home Sweet Homediddly-Dum-Doodily", which aired on October 1, 1995. He said on his official website in 2007 that he liked portraying Santa's Little Helper because
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