Blue screen..... hi. i have a sony kp-51ws500 model about five years old and just recently the screen turns all blue after about 10 seconds of it being on. can anyone tell me what the problem is? is it something worth fixing? if so, how much can, or should i say, expect to pay for this problem to be fixed. any info would be greatly appreciated...thx.

You have the classic sign of the failed Sony CRT. This was a VERY common issue with tese series of TV's. Just replacing the blue CRT alone isn't easy as they are no longer available and have to be pulled to be rebuilt. If you do that I highly suggest replacing the green and the red as they will follow. Maybe not now but trust me they will. You are looking over 1000.00 in repairs.