Hi there

Just butting in here and linking to this thread:

https://community.sony.co.uk/t5/hi-fi-systems/ht-tx3-and-ps4-pro/m-p/2265255

At the moment, until devices catch up, the general advice is if you want HDR and 10bit, then you connect the device (i.e. PS4 Pro) directly to the TV.

Cheers