I have an internal TV Tuner card on my laptop and have been using Sage TV. It has a coaxial input and the quality is pretty bad. I'd like to use my digital Cable box but it has composite RCA outputs (red, white, and yellow cables). I've seen some external TV Tuners that have adapters for these cables. Is there anyway to get an adaptor that will hook up composite RCA cables to the coaxial input on my computer?
