I just bought a new 65" ONN tv with Roku. I have an old JVC RX-668V receiver an old bose accoustamass subwoofer and cube speakers. I bought a avedio hdmi audio extractor. How do I get my surround sound to work with this tv. The receiver and speakers are working with fm radio. I have tried optical from tv to extractor and hdmi to extractor. Is there some setting on the tv I am missing? I'm at a loss.