my HW150(original one) hdmi connect to Yamaha Home Theater system. HW150 Menu->Option->Dignital Audio set to "RAW HDMI ON". Surrending sound are working. I have try to connect HW150 to my TV HDMI2, HDMI2 audio set to digital. TV HDMI1(AR, audio return) to Yahmaha HT, Surrending sound is working too. Since I am using OTA(antenna), I am not sure the TV station broadcasing surrending sound or not, I only know digital sound does output from HW150 HDMI.
2/14/14 at 5:21pm