xfinity

I have a Lenovo Y40 Laptop with a realtek soundcard which can record audio. My TV is a Panasonic. It does not have RCA outputs for Audio. Only inputs. There's a digital audio input/output. I have a Xfinity cable box with RCA outputs, so I plugged in my RCA R/W with 3.5 mini jack, and if I...

I have recently acquired a RCA Soundbar (model RTS7010b), and I would like to program it to my Comcast remote (model with the red OK/Select) button. The Xfinity box model number is RNG110 if that helps anybody. Assistance is greatly appreciated!