I don't know if anyone else caught this this week, but check out these screen grabs from the most recent episode of The Simpsons, "500 Keys."

Look in the top-left corner of this one.

The weird thing about this, though, is that the bending symbols are never mentioned in the episode. They're just there in the background. I have to assume it's some kind of in-joke or homage on the part of the background artists. I'm just posing this because I think it's cool, but I'm very curious about why the bending symbols might be shown on the show, if anyone has any information or other theories.

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