I have just bought a new LG SK10Y soundbar to complement my LG B7 OLED display and my PS4 Pro. I'm following the instructions on the manual, so my setup is PS4 -> HDMI -> TV -> HDMI ARC -> SK10Y. Dolby Atmos works fine via the TV's Netflix app, but I have concerns about which audio settings to use with the PS4. The 3 options are Linear PCM, Dolby bitstream and DTS bitstream. Choosing any of these will produce sound, however, choosing Dolby bitstream causes a noticeable delay in sound (around 1 - 1.5 seconds). So that's out of the question. I don't know whether to choose PCM or DTS, which one is the correct one? I've read somewhere that HDMI ARC causes linear PCM to default to stereo, which I do not want. I also do not want to plug the PS4 into the SK10Y, as that apparently doesn't allow me to do 4K in HDR. What would be the correct way of hooking things up with which audio format to enable me to use 4K HDR and surround sound?