Just finished installing my 65" UH7700. Coming from a 55-incher, the size improvement isn't much but still quite noticeable.
I connected the HDMI cable to the HDMI 2 slot, since it's the one earmarked for ArC and connected the other end to my Yamaha AVR-677, and enabled Simplink. Also connected an optical cable for good measure
However, I cannot output sound even if I switch to Optical/HDMI. This wasn't a problem with my old TV (LA7400). Does anyone have the same problem? 🙁