I just returned the Lighting adapter to HDMI dongle to Apple. I had 6 great movies in iPad Form Iwantedto watch on my OLED HDR 55" TV and while the movies looked great and filled the screen. Apps and the iOS display would not go full screen. I found this quite odd,maybe it a setting I missed in iOS ? It seems like for $50.00 this needs to be solved. I understand why because it drives sales of Apple TVs.