I just bought a new Apple TV 4K to replace my 3rd Gen which wasn't outputting surround well. The new one is apparently not compatible with a 10 year old Sony. The display and sound cut in and out. When I rehook my old Apple TV, this doesn't happen, but I don't get surround. Other than betting the new AVR I'm trying to decide on, can the 4K be made to work with my Sony for now?