Amethyst: Princess of Gemworld, on Cartoon Network
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This is a series of seven animated shorts (each episode is a little under a minute and a half), based on a comic book series I had never heard of. It originally aired on TV as part of DC Nation in 2013, before being uploaded to the DC Kids YouTube channel in 2015. (And I didn't see the series until 2017.) It's about a girl named Amy who somehow gets sucked into the world of a video game, and has a little adventure. I found it fairly cute and amusing. Also, the main villain, Dark Opal, appears in a different form in the unrelated movie DC Super Hero Girls: Hero of the Year. And I guess I don't know what else to say.