This is a real brain twister (for me, anyway). My entertainment center consists in part, 80 in. Sharp HDTV, Denon Receiver, DirecTV box, ROKU 4, Apple TV.
Everything has been set at 1080p for a while now and working flawlessly until recently when I went into the ROKU 4 and discovered the screen width much too wide. I verified the ROKU setup was correct at 1080p but nothing changed. I then selected 720p and the width came into where it ws supposed to be which is just the opposite of what it should be. I've entered a ticket with ROKU but so far they've been unable to come up with anything.
I've verified my TV is set at 1080p as well as the DirecTV box which I realize wouldn'y have anything to do with it.
Now, stranger yet, I went into my Apple TV and discovered a screen width way too wide, At first I thought maybe the ROKU had failed but now I don't think so but have no idea where to look next.