Thanks! Believe problem is going to be with Apple TV 4k HDR. Device is not ready for bleeding edge users. Believe I have the following problems.
1) When device detects 4k HDR, it is configure for 4K HDR as default. There is no auto changing when programming is not HDR.
- problem can be identify by viewing display setting on CinemaX P2B screen. (Will not change when programming information is changed.
- Problem is gone when Apple TV is set for 4K SDR.
2) Another problem is with sound output from HDHOMERUN app. Sound is always output as Multiple Channel Sound on Marantz SR7010. Believe output is also hardcode and not a pass through.
Tivo Bolt's sound output is Dolby surround
Nvidia Shield's output from HDHOMERUN is also Dolby surround.
Thanks for all the assistance. I am just writing off Apple TV 4K HDR as not ready for prime time in Home Theater Configuration with next generation equipment. So Sad! For now only Nvidia Shield TV and Amazon TV are the only setup for Home Theater with next generation equipment.