Fri February 17, 2012
After 23 Years, 'Simpsons' Hits 500th Episode
The TV show The Simpsons is airing its 500th episode on Sunday. In its run, the show has aired more than 170 prime-time hours and had 23 seasons with hundreds of guest stars. Melissa Block and Robert Siegel offer a look back on the long-running animated series with insight from a few of the people who know it best: the writers.