Is anyone else having this same problem and let me know so I can determine where the problem is and who to contact to fix it: I can't get any Dolby Digital 5.1 audio output from either YouTube or the Google Play Movies apps. They will only output DD 2.0.
It is not a problem with the movies themselves, as I have double-checked all my movie contents from my Nexus Play to validate. It also doesn't appear to be the the TV or WebOS 3.0, as all my other TV apps are not experiencing this problem, and I get Dolby Digital 5.1 output just fine. I have updated the firmware on my TV, uninstalled & reinstalled the apps to check, and still no good. I've chatted with Google support but got a Tier 1 support person who didn't have a clue or help. This person suggested I contact my speaker manufacturer which was a ridiculous response. Below are my versions...
LG OLED65B6P
WebOS 3.0 04.30.65
YouTube 1.0.27
Google Play Movies 1.0.20