- Home
- The Simpsons
- The Simpsons Season 22 Episode 21

The Simpsons Season 22 Episode 21
After finding the keys to every door in Springfield, Lisa finds a hidden room beneath the elementary school.
Serie: The Simpsons
Episode Title: 500 Keys
Air Date: 2011-05-15
War Planets: Shadow Raiders
Despite the history of their warring past, the four planets of Ice, Rock, Fire, and Bone must set aside their differences and feuds to work together and form an alliance:…
Boston Public
Principal Steven Harper runs Winslow High School as best as he can while dealing with the demands of the faculty, the students and their parents.
Falcon Crest
Falcon Crest is an American primetime television soap opera which aired on the CBS network for nine seasons, from December 4, 1981 to May 17, 1990. A total of 227…
Martin
Sassy sitcom centering on radio and television personality Martin Payne. Series focuses on his romantic relationship with girlfriend Gina, her best friend Pam and escapades with best friends Tommy and…
Fear the Walking Dead
What did the world look like as it was transforming into the horrifying apocalypse depicted in “The Walking Dead”? This spin-off set in Los Angeles, following new characters as they…
Sealab 2020
Commanded by Captain Michael Murphy, Sealab is dedicated to the exploration of the seas and the protection of marine life. Among other things, the crew of Sealab faced such challenges…
The Sarah Jane Adventures
Sarah Jane Smith is a truly remarkable woman who inhabits a world of mystery, danger and wonder; a world where aliens are commonplace and the Earth is under constant threat….
Coronation Street
The residents of Coronation Street are ordinary, working-class people, and the show follows them through regular social and family interactions at home, in the workplace, and in their local pub,…
The Soup
With this satirical series, the E! Entertainment Network returns to a format they helped create with the popular ’90s show Talk Soup. Only this time instead of just poking fun…
The Misfit of Demon King Academy
Anos Voldigord was a tyrannical Demon King that eradicated humans, spirits, and even the gods, but became bored of eternal warfare and reincarnated with dreams of a peaceful world. However,…
Stars in the House
In the wake of the Coronavirus pandemic and theatres across the world closing their curtains indefinitely, SiriusXM host Seth Rudetsky and his husband, producer James Wesley have created Stars in…
The Brittas Empire
The Brittas Empire is a British sitcom created and originally written by Andrew Norriss and Richard Fegen. Chris Barrie plays Gordon Brittas, the well-meaning but incompetent manager of Whitbury New…