Hi. as any one had the switching on & of at random sorted on this particular model? if so could they tell me what the problem is. I have had my tv set now for over 12 months, and in the meantime had two service calls done under warranty, but they were not able to fix it. I have taken extended warranty out, because of the poor relailbilty of this particular model. On average it switches of at least 3 to 5 times a month, and is very annoying when watching some thing interesting I.e football! Would be gratefull of any advice on this issue Thank you.