Which episode of "Rick and Morty"  aired unannounced on April 1, 2017 and was replayed every half hour from 8pm to 12am ET, as part of Adult Swim's annual April Fools' prank?
The Rickshank Rickdemption "The Rickshank Rickdemption" is the first episode in the third season of the American animated television sitcom "Rick and Morty", and the twenty-second episode overall in the series. It was written by Mike McMahan and directed by Juan Meza-Leon. The season three premiere first aired unannounced on Adult Swim in the United States on April 1, 2017 when it was watched by 676,000 American households. On the first day of its original broadcast, "The Rickshank Rickdemption" was replayed every half hour from 8pm to 12am ET with improved ratings, as a part of Adult Swim's annual April Fools' Day joke.
The Mansion Family "The Mansion Family" is the twelfth episode of the eleventh season of the American animated sitcom "The Simpsons". It originally aired on the Fox network in the United States on January 23, 2000, and was watched in around 11.3 million homes during the broadcast. In the episode, Mr. Burns goes to the Mayo Clinic for a check-up after being declared the oldest man in Springfield at an awards ceremony. He leaves the Simpson family to house-sit his mansion for him. When Homer throws a party on Burns' private yacht in international waters, the party goers are captured by Chinese pirates.