I have an LG HDR TV and JRiver is connected to an Onkyo receiver with the signal passing through. Madvr only recognises the Onkyo and the TV is simply listed as a Digital device connected to the Onkyo. The hdr settings do not appear at all when choosing the device when I use JRiver settings. While a video plays, I can see the menu choice (hdr) when right clicking on the screen to get madvr settings, but I then get an error message when I select it. Something about it not being available through the browser's settings.