Already written as my Sansui 4k HDR TV doesn't support DV...it shows DV contents as HDR...no option to enable DV as it's HW/SW related of TV brand/model...If tv support/enable Dolby vision it will show Dolby vision also I believe?
On the other hand my Sony Bravia 4k TV is DV compatible...it's showing automatically and no option to desable/ enable... DV settings appears automatically for DV contents...