TV model? Does it support ARC? Have you read the owners manual of the NR1609? Maybe you are missing some step....
With the latest HDMI version and HDCP 2.2....as from what i understand...all devices in the chain needs to be compliant then it works seamlessly
content from Goggle...
HDCP 2.2 is a technology designed to prevent illegal copying of 4K Ultra HD content. Every link in your video chain must support HDCP 2.2 — your TV, video source, and any component the video signal passes through. ... HDMI 2.0 is also required for TVs and components to be able to pass 4K video.