@BazzaBear wrote:
Its a Sony 65" LED 4K Ultra HD, the inbuilt Netflix or Youtube work superbly,
Not a fair comparison using the TV's app against a SD sourch that's being upscaled to 4K by the 360, try setting the 360's resolution to 576 and let your TV upscale, even setting the 360 to 1080 and allowing the TV to do the upscaling makes a difference to some HD source's.