I think that you won't find such a beast... at least not in the tradional "cable style" (there might be a black box solution out there somewhere).

It's not a matter of connector type, it's that you're dealing with two completely different signal types...digital and analog.

I think if there were such a black box available, the necessary enclosure, digital to analog convertors, power supply, etc.. produced on a small scale would cost half as much (or more) than replacing the TV.

::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::