So heres what I'm dealing with. Got one of those old Bose set ups, helping a friend, with the receiver to sub then sub to speaker. He has a first generation samsung 4k, with that external HDMI hub. I sold him my old pioneer vsx, maybe 818, a while ago. It worked for a while then stopped when he moved stuff. My problem is getting the audio to come out of the receiver. i.e. if I go PS4 (HDMI) to tv hub then tv hub out (optical) to receiver I get no sound. I check the output setting on tv to make sure it's optical. I also make sure nothing is going through arc, as the pioneer does not have that. If I go PS4 to receiver (HDMI) then HDMI to tv the sound passes through to the tv and doesn't come out of the speakers hooked to the receiver. I even switched to an old pioneer plasma (still awesome btw) and Yamaha receiver and the same thing happened. I feel like theres some dumb thing I'm missing so please embarrass me.