I have an old Yamaha HTR-6230 AV. I just got a roku. I also have an old Samsung 60 inch plasma 1080p. As you can not run 5.1 audio from the tv to the AV unit, I bought a DOTSTONE hdmi audio extractor with pass, 2.0 and 5.1 outs using a optical audio cable. Issue: can not get 5.1 when I stream...