I've just ordered one of these, to be delivered on Friday: LG OLED65B7V 65" Smart 4K Ultra HD OLED TV I would potentially have a maximum of 3 x HDR/4K sources, 1 - a UHD Player, 2 - a Sky Q box and 3 - an Amazon Fire TV. I have a legacy (non-HDR/4K) amp, which I'd like to keep. The problem is, of course, that I can't plug any of these sources into the amp, then one HDMI from amp to LG, as the amp won't pass 4k/HDR. Now I haven't bought the UHD Player yet, but will buy one with 2 x HDMI outs, so there should be no problem with the amp there. HDMI 1 to carry video to the LG, HDMI 2 with the audio going to the amp. The Sky Q box has an optical out for Dolby Digital, which is the best audio format available on that box, so again I'll plug the HDMI straight into the LG, and take an optical digital out to the amp. Now, this Fire TV (like the Sky Q box, the best audio is Dolby Digital) only has 1 HDMI out, and no separate audio out. But the LG does have an optical out. Three questions: 1 - Can I plug the Fire TV straight into the LG, then run the optical out from the LG to the amp? In other words, will the LG pass an audio feed it receives over HDMI out through the optical output? Or is the optical out only for content where the LG is the source (internal tuner, apps, etc.)? 2 - If so, could I also do this with the Sky Q box, so I only have to run one optical cable (LG to amp) instead of 2 (LG to amp and Sky Q box to amp)? 3 - Does the above set up look right? Any potential problems? Many thanks.