New LG55LA7400 and Panasonic SC-BHT20 home theater unit. Using HDMI ARC out on the speakers connected to HDMI ARC on the TV. TV setting - external speakers HDMI ARC/digital optical cable. No sound. I've also tried using a digital optical cable with no success. My TV input is over-the-air. Any suggestions?
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7/20/13 at 10:53am