You as a dev, do you know if Apple allows you to use the full 1920x1080 screen of a TV screen or do you have to take an empty border around the screen into account of e.g. 20 pixels wide to allow for overscan.
I noticed that some apps have icons, buttons, UI element slightly off screen, some don't.
Makes me wonder if Apple actually has guidelines. The screen calibration option is of no use.
There's no restriction at all. We have the whole real estate of 1920x1080 to do whatever we want.