1. Downton Abbey + Martin
2. Doctor Who + Sherlock + Annie Get Your Gun
3. Community + Friends
4. Bridesmaids + Game Of Thrones
Why it works: Bridesmaids and Game Of Thrones are both very recognizable, so putting them together is just some big meta joke.
5. My Little Pony + The Great Gatsby
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Why it works: Bronies love pony mashups, and there's such good material to work with.
6. Mean Girls + Disney
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Why it works: Don't tell me you haven't imagined the Disney Princesses as a catty little clique. I mean, they're princesses after all!
7. The Office + Family Matters
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Why it works: The ridiculous laugh track only adds to the hilariousness of the Office.
8. Scott Pilgrim + Avatar The Last Airbender
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Why it works: The comical scenes from Avatar The Last Airbender blend seamlessly to the over-the-top world of Scott Pilgrim.
9. Harry Potter + Mean Girls
Why it works: If you take out all the evil wizards and action scenes in Harry Potter, it's basically a teen comedy anyway.
10. The Room + Inception
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Why it works: The Room takes itself very seriously, so this is how the trailer would be if the production value was a little higher.