I have a problem that appears to be related only to my coaxial cable input. I periodically get static, white lines across the screen or a "no signal" error message. Pixilation does not occur. Initially it occurred after the TV had been on for a few hours, but now it occurs nearly all of the time. This effects both visual/audio. The same problem occurs when attempting to use my VCR, which also enters the TV via the same coaxial cable input. I've tried bypassing the VCR completely, and changing the cable, but the issue still occurs. It is not the tube itself, as I still have a perfect picture when viewing DVDs via the component video inputs. Possibly indicative of the cause of the problem, when I use PIP, the issue only occurs with the primary picture. The secondary PIP (picture in picture) is perfect, and the problem does not occur. I suspect that the issue is occuring after the coaxial cable signal enters the TV, since the problem effects the primary picture, but does not effect the secondary PIP. Someone else posted a similar problem with his Sony TV and someone suggested a possible problem with a printed circuit pcb. Any suggestions on what may be causing this and whether it is a simple repair? Also of importance, the TV is too large and too heavy to put in my car to take it to a repair shop.