No Dolby Vision thru Onkyo TX NR656
i recently purchased a new Vizio PX-75G1 4K TV. It is Dolby Vision capable. And is updated to latest firmware version. I have an Apple TV 4K which passes the Dolby Vision signal directly to the TV. However, when I try to connect the Apple TV (latest firmware also) thru my Onkyo TX NR 656 (also with latest firmware), I lose Dolby Vision capability. I just bought an Amazon FireStickTV 4K which DOES pass the Dolby Vision thru the Onkyo. I’m using good HDMI cables all Dolby Vision capable. How can Amazon figure this out with a $25 stick and Apple not?