We have a Samsung Series 6 Flat Screen TV, a Spectrum/Brighthouse Cable/DVR Box, and a Blue Ray Player that connects to speakers. If we have the cable box on we can hear through the speakers, when we use the DVD Player, we can hear through speakers, but when using TV only for movies through Amazon, Netflix, etc- no sound through speakers. I have HDMI cables from Cable to TV and from Blue Ray to TV, then also have optical audio from tv to Blue Ray. What are we missing? I have tried all the settings.