The Simpsons (1989): Season 16, Episode 19

16 - 19: Thank God It's Doomsday

An apocalyptic movie followed by three real-life omens cause a fearful Homer to research the rapture. Believing that he has deduced when the event will happen, he begins warning others as a way to secure his spot in heaven. After a skeptical Kent Brockman reports on Homer's prediction of stars falling from the sky, there's a Krusty Special blimp accident, and Homer attracts a slew of new believers. When the rapture never comes, a discredited Homer discovers an error in his calculations and returns to the Springfield Mesa alone, where he experiences the rapture - or maybe a heat-induced dream - and convinces God to delay doomsday.