I have a Samsung HCL473W rear-projection HDTV. I turned in my HD cable box. When I reconnected my coax cable, I get sound and no picture (snow and noise lines).
I've unplugged the TV overnight. I've connected a VCR w/RCA cables to try it's tuner. I've tried a digital cable box w/component and then S-video connections. Still no video. Component 1 which has my DVD player connected works fine.
I'm curious about this myself...I have an RCA and up until a few weeks ago the component 1 is where I watched my cable box...now I have to view it through channel 3. The only thing I receive through Component 1 is audio and the video is dark & fuzzy with no picture.