The extension is a specific type of MPEG-4 file that has been protected by Apple’s FairPlay Digital Rights Management (DRM) .

"Young Sheldon Cooper's life is turned upside down when his father, Mike, tries to get him to participate in a football game. Sheldon, being the genius that he is, doesn't understand the appeal of a sport that involves hitting people and is more interested in reading about string theory. Meanwhile, Missy tries to get in on the action by trying out for the school cheerleading squad. The episode, titled 'Football and a Graduation', is a hilarious and heartwarming addition to the series, showcasing the Cooper family's unique dynamics and Sheldon's struggles to fit in with his peers."

In this Episode; Sheldon tries to figure out a way to attend a comic book store grand opening on a Saturday , but finds himself in the middle of a football game on a conflicting date.

The episode "Young Sheldon" S01E04 titled ' Football and a Graduation ' Original airdate : October 26, 2017.