So I got my B6 now.
When I play HDR content from Amazon there's a little HDR thing on the upper right for a couple of seconds to indicate HDR is on.
When I watch Netflix Dolby Vision content there isn't. How do I know whether it's on or not?
HDR popup notification for HDR10 content and Dolby Vision popup notification for, you guessed it, Dolby Vision content.
You'll definitely see the DV popup when you play something like Marco Polo or Daredevil on Netflix.