OK, I have an old 2001 Mitsubishi HD TV and my old cable box had component outputs and worked fine when it plugged in. Xfinity doesn't have component. So, I have the HDMI to Component converter that works fine for my old projector(that only has component) but when I plug it into the TV, I get nothing. Audio comes through the receiver but no picture on the TV. I've looked through the settings on the TV and don't know how to get it working. Do I need optical cable too or something? HELP I don't have money to buy a new TV right now! Thanks