You already know that season 15 of South Park resumes next Wednesday, but did you also know that a scant four days later on Sunday, October 9 at 10/9c the new behind-the-scenes documentary The Making of South Park: Six Days to Air will premiere? It's true. And as you can see in this trailer, the film once and for all dispels the long-held myth that South Park episodes hatch in their completed form from unicorn eggs.

The trailer's got some NSFW audio, but it also features Bill Hader, so I'm sure your boss will be cool with it.

New episodes of South Park return next Wednesday at 10/9c.