My S90D 77 is paired with the Q930D soundbar. Q Symphony works when I plug my Roku to TV input with either wi-fi or optical to the soundbar. It does not work if I run the same HDMI cable to the Soundbar input and use an identical cable to the HDMI eARC TV input. In sound settings I get the eARC option, but not the TV + option. I have tried combos in expert settings and Anynet, digital output etc. This is not a major problem but I get much better lip sync with eARC and would like to use the Q Symphony too.
