This happens to my iPad 4, whenever I watch my Optimum TV app only. Looks like I am not the only one on this issue, after all.
BTW, I don't get this display issue, when watching HBO GO or other movie/videos.![]()
As has been reported (and confirmed by me, for what that's worth), not all video apps use Apple's video-decoding algorithms, so not all video apps have the issue. Only the ones piggy-backing off Apple's software.