I have just purchased a new 49" Samsung 4k TV and have noticed that when i connect my Shield to it there is a black border all the way round the edges. I would say its about 1/2" to 1" away from filling the screen all the way round.
I have tried changing the resolution settings in the shield and its set to 4K (recommended) and the only one that makes it fit is if i select the 1080p resolution.
This is where it goes weird. IF i go into my TV Settings and turn OFF Screen fit it then fills the whole screen, but if i turn ON screen fit it goes to having a border again, this is the opposite of what i would expect the Screen fit setting to do on my tv ??