My digital cable box had frozen and I unplugged the power cord. Upon the cable box reseting and turning the television back on there were semi-transparent, vertical black bars spaced in perfect increments across the entire screen. From what I've read on this board, it sounds like either the DMD or digital board. If this is the case, where can I get my hands on either of these parts? How difficult are they to intstall? How much are they? Is it even worth it opposed to getting a new TV?