The Simpsons Season 22 Episode 21 500 Keys 2010
8.012/10 by 9752 users
After finding the keys to every door in Springfield, Lisa finds a hidden room beneath the elementary school.
- Released: 2011-05-15
- Runtime : 22 minutes
- Genre : Family, Animation, Comedy
- Stars : Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria
- Director : Danny Elfman
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1. Elementary School Musical 2010-09-26
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2. Loan-a-Lisa 2010-10-03
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3. MoneyBART 2010-10-10
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4. Treehouse of Horror XXI 2010-11-07
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5. Lisa Simpson, This Isn't Your Life 2010-11-14
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6. The Fool Monty 2010-11-21
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8. The Fight Before Christmas 2010-12-05
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9. Donnie Fatso 2010-12-12
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10. Moms I'd Like to Forget 2011-01-09
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11. Flaming Moe 2011-01-16
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12. Homer the Father 2011-01-23
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13. The Blue and the Gray 2011-02-13
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14. Angry Dad: The Movie 2011-02-20
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15. The Scorpion's Tale 2011-03-06
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16. A Midsummer's Nice Dream 2011-03-13
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17. Love Is a Many Strangled Thing 2011-03-27
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18. The Great Simpsina 2011-04-10
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19. The Real Housewives of Fat Tony 2011-05-01
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20. Homer Scissorhands 2011-05-08
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21. 500 Keys 2011-05-15
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22. The Ned-liest Catch 2011-05-22
