Have you ever wondered how long it would take to watch every episode of "The Simpsons" back-to-back?

The answer as it stands currently is roughly 13 days - and you'll have the chance to do just that this fall.

Since 1989, "The Simpsons" has been a mainstay of the Fox network schedule. This season, the series will reach its milestone 600th episode.

In honor of that landmark, sister cable network FXX will, for the second time, hold an "Every. Simpsons. Ever." marathon, running every episode in chronological order, up to and including #600.

The cable channel held their first mammorth marathon in 2014 when it obtained syndication rights to the series. At the time, 552 episodes had aired on Fox.

The second "Every. Simpsons. Ever." marathon runs Nov. 24 - Dec. 6 on FXX. "The Simpsons" 28th season premieres Sunday, Sept. 25, on Fox.

Cable subscribers who have FXX in their package can also register online with SimpsonsWorld to watch every episode on your own schedule and on the device of your choosing.