While I have been using the Dolby Vision Bright PM to watch DV content, I was talking to John (jrref) yesterday and he offered another DV “hack” - run DV Dark with gamma set to +2. I tired it last night and it seems to achieve the same subjective brightness as the Bright PM but without the potential highlight clipping that the Bright PM can introduce.
I suspect this is going to eventually be fixed by Sony with a firmware update (especially when the signal generator manufacturers release DV profile 5 test patterns so the Sony DV PM can be measured), but this is another option for those of us using an ATV to view Netflix or iTunes DV content. UHD Blu-ray stuff is easy since you can just turn off DV in most players and force HDR10.
Emotiva XMC-1 (w 4K board) & XPA-5, B&W CM9s2, CM8s2, CMC, Hsu VTF-15, Auralic Aries, Apple TV 4K, Sony 65A9F & Panasonic UB820