So today my new plasma tv arrived, panasonic 42-pwd7uy, get it out of the box, attach it to set top box via coaxial to bnc connector. No signal. Frustrated, but not deterred, I try connecting the video from the settop box to the panel. No signal. Settop box to A/V Receiver (Denon 2805) through the digital coax input on, componet to plasma. No signal. 3 hours of messing with it an no signal (can get sound, but no video). Tried connecting my computer to the plasma through S-Video cord and it works. Any ideas? Aldephia cable, motorola set top box.