hi can anyone help me i bought a lg plasma 42inch about 6yr ago when connected to sky box it became speckly at times we just thought it was interference and just got on with it, now we find having got rid of sky the speckles are still there and can sometimes last for a while having done some research on these tv's find its a common fault there are four componts like generators that feed the signal one of these can be faulty how do i stand with this at this late stage regards alan