I would like to get a xbr49x900f for my bedroom. I can only fit a 49-50" there. I am running shield boxes throughout my house. I have an LG OLED as my main TV with shield and smaller TVs in several other rooms also on shields. Would there be any benefits/drawbacks to put a shield on a TV that already has android tv out of the box?
Go for it. That's a great TV, but you can't go wrong with the Shield's horsepower over the TV's Android OS.