You have to use a VCR, or a cable box to tune the channel, and then output to RCA. AFAIK, that dongle is for digital audio.

The conundrum: <BR><BR>I have an HK AVR-325 on the way but I own an old TV that only accepts coaxial input. As a result, I believe I'll need to find a way to convert either an RCA video signal, ...