Solved. Thanks for all the replies. I can't believe it took me so long to get an appropriate soundbar. I didn't know what spdif was, and didn't understand what it said online. And sales guys, like at best buys, had no idea, and steered me in the wrong direction every time. Surprise!!! My confusion was the RCA plug - which was one channel. I didn't understand that spdif was digital, and could send stereo on one cable. Not sure why it took so long to find a logical explanation online. Getting too old for rock and roll, and technology? (YES!)
I found a Viseo soundbar that came with digital and sdif cables. Everything I needed. Now I'm rocking out with 5.2 sound, and loving it! And the voices are clearer, and not distorted! And... it only took a year...