Deepcolor isn't exactly an HDR feature. HDR has the wider 2020 colorspace (container) at 10+ bits. Deepcolor was a capability along with xvYCC that allowed regular old Rec709 stuff to get enhanced with a wider/deeper color gamut. The mastered in 4k Sony Bluray's are an example of content like that in practice.
Of course in practice if your particular set has its own issues that require that setting to get HDR to work right, then that's something else entirely, and the type of thing that drives you bonkers :/
Last edited by mo949; 12-06-2016 at 05:15 PM.