just something else mate , the letter you are getting from LG saying BER, keep the original with you, do not send it to the retailer, Citizens advice or trading standards, keep it and only send photocopies. That bit of paper will be classed as an "experts opinion" should it go to court. Also I would personally except the TV back from LG. Its not their fault and the blame as I see it, is with Sands, You need to contact Citizens advice and let them help you with this, keep all paperwork etc receipts and take them with you to any appointment you get with them