The .m4v file extension is a video container format developed by Apple, similar to MP4 but with added capabilities for DRM (Digital Rights Management), chapters, and metadata for iTunes Store purchases. When we see "updated entertainment content" paired with m4v , it suggests media that is:
: Encourage discussion or interaction. You could ask questions related to the content, like what viewers thought of the update or if they have suggestions for future content. xxxmmsubcom tme xxxmmsub1 nima031720m4v updated