Hello, I have a Westinghouse DWM55F1G1, which does not appear to support ARC, but also does not have a place to plug in the Optical Digital Cable that came with the Sony HT-CT390 sounder/subwoofer I just bought. There is no trouble with the power, and I played music from my iPod via bluetooth with no issue. I'm connected to the TV through an HDMI cable, but I don't hear any sound coming from the soundbar. Any advice or help is greatly appreciated!