I have a Directv HD DVR, and I want a 2nd TV in an adjacent room to display the same thing that is playing on my main TV. I have my main TV running via component video (and optical audio) through my Onkyo Receiver. There is a normal cable (RJ45?) running from the area of the HD DVR and Onkyo receiver to the 2nd television. Is there a way to run the signal to the 2nd TV?