Pardon my lack of understanding of this topic as I am new to soundbars and cannot find any good explanation on the internet. I am looking to buy a soundbar, and am researching what to buy. One of the things I see Samsung HW-K950 owners complain about is the lack of "Dolby Vision passthrough". What does "Dolby Vision Passthrough" and it not being supported mean and why is it a big deal? When I look at the Amazon page for the product: https://www.amazon.com/Samsung-HW-K950-ZA-Soundbar-Technology/dp/B01I0HW12O I see something about "4K Pass-Through" that is supported. Is 4K passthrough not the same thing as Dolby Vision passthrough? I am very confused because I thought Dolby Vision has to do with visuals, and Dolby Atmos has to do with the sound. Why does Dolby Vision passthrough even matter for a soundbar? I see a different soundbar like the Sony ST-HT5000 supports Dolby Atmos and Dolby Vision passthrough. I see something about receivers supporting or not supporting Dolby Vision passthrough... in the setup I am looking to have, I just want to get two things. TV (which supports Dolby Vision and Atmos) + Soundbar and connecting the two with HDMI. Does "Dolby Vision Passthrough" matter to me? Should it even be a factor I should be concerned with? Why do others seem to complain about it not being there?