I'm planning to get a PS4 Pro soon. My problem is that, while I have a fairly new Samsung 4k TV, my 7.1 receiver is much older (rx-v665 to be specific HDMI 1.3a/1080p support). Is there any sort of splitter or matrix that can let me get 4k on the TV and 7.1 from the receiver rather than downgrading to 1080p or 5.1 for about $50 or so? Or any other sort of work around short of replacing my receiver to get the best performance out of both devices?