Take Control of Apple TV, Chapter 8: View Photos & Home Movies
In this chapter of “Take Control of Apple TV,” Josh Centers teaches you everything you need to know to turn your large-screen TV into a digital picture frame that can’t be beat, complete with access to photos stored in iPhoto or Aperture on your Mac, or in iCloud or Flickr online.
Is there a maximum size (or runtime) for a Home Movie that can be uploaded to iMovie Theatre
The limit appears to be 15 minutes. And of course, videos count against your iCloud storage space.
https://discussions.apple.com/thread/5482403
Good question! Thank you.