Weird, someone else did the same thing and it didn't result in 5.1. My tv does pass 5.1 and I don't. Do you watch cable? If so are you getting 5.1?Optical directly to my ps4. I don't have an hdmi arc capable tv and my tv only passes 2.1 anyhow.
Yes i can hear discrete separate audio channels for the sound bar as well as the rears when playing games.