Originally Posted by enricoclaudio
The Panny 820 has Netflix and Amazon Prime Video apps and those apps take advantage of the Auto Tone Mapping as well. In fact, you have separate Auto Tone Mapping settings for UHD discs and streaming apps like Netflix and Amazon Prime Video. Netflix, which is the only streaming service I use, looks GREAT on the Panny 820. IMHO it is a waste of resources feeding a 4K HDR Projector with streaming quality video. I do prefer to purchase the physical disc. But that's me as I know a lot people here do feed their projectors with HTPC + MadVR and they love the results.
So for YOUR usage, it works great. But I don't use the optical discs for my 4k UHD, I rip them to hard drive and enjoy the same full quality without the hassle of swapping physical discs and suffering FBI warnings and commercials I can't skip. My equipment room for my theater is not convenient, but I don't need access to my blu ray player because all media is available at my fingertips from my seat in the theater. And I DO happen to enjoy watching content that is available on Netflix and Amazon because most of what I watch on those will never be available on blu ray and I won't restrict myself to only one kind of media just because it is the best quality. I also watch a few cable TV shows and even some sports now and then, so having those other options for things like PSVue or my HDHomeRun antenna feeds is also of high importance to me.
And since tone mapping is also of critical importance to me with a 150" wide scope screen, the only device that fits my above needs (works with external media devices) and will work, other than the JVC, is the Lumagen Pro.
My point is not to argue that your combination works for you, but rather to point out that the panny 820 with a projector is NOT the same as a projector that can accept any input and tone map the output. And it isn't the same as a MadVR setup either, for the same reasons. And while the Lumagen can do all this and more, it is an expensive addon that is well outside many people's budget after they buy a projector.
I am a fan of Sony projectors, they just don't fit my needs, and getting them to fit my needs costs way too much money. But I'm happy that your combination works for your use case, and I have absolutely nothing against your choices.