So the "Every Episode Ever" marathon of "The Simpsons" starts today on the FXX cable network. So how many episodes are there? 552. To give you some perspective, it will take 12 full days to air every single episode back-to-back.

I'm sure there will be die hard fans that will try to stay up for the entire 12 days straight to watch the marathon in its entirety. The show's first full season was in 1990, which means George H.W. Bush was the President of the United States of America.

The show has seen him, Bill Clinton, George W. Bush, and Barack Obama serve as Commander-In-Chief during its tenure. I wasn't even in high school yet when the show made its debut, and next Summer I have my 20th year class reunion.

LONGEST...RUN...EVER.

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