When does the seventeenth episode of "The Simpsons"' twenty-first season which was renewed for by Fox aired?
American History X-cellent "American History X-cellent" is the seventeenth episode of "The Simpsons"' twenty-first season and 458th overall. It originally aired on the Fox network in the United States on April 11, 2010. In this episode, Mr. Burns is arrested for possessing stolen art and Smithers is chosen to run the nuclear plant—only to turn into a misanthropic slave driver when his subordinates begin taking advantage of his kindness.
The Marge-ian Chronicles "The Marge-ian Chronicles" is the sixteenth episode of the twenty-seventh season of the animated television series "The Simpsons", and the 590th episode of the series overall. It aired in the United States on Fox on March 13, 2016.