I've noted that they appear sensitive to antenna connections particularly the coaxial plug.Mine are all fitted with top quality plugs and so far so good,although i had to fit one with an amplifier due to signal loss/pixalation.Not sure if this will fix,but it's a cheap test.
caine
July 2008
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix televisions.