I have had to contact LG 4 times and a call to their third party repair center. The LG responses indicate they do not want to understand. The only repair facility provided to me is not conveniently located and only open M-F 9 to 5 when I am at work. I called repair center and they advised that the likely solution to my sound problem is to replace the mainboard for a cost up to $200. I checked out my sound problem with this unit on the web and it is a common problem, therefore LG must be aware of the defect. My LG unit began having intermittent sound problems when it was 3 to 4 years old which has now increased to the point it is unusable. I am surprised that it would fail so soon. I have owned many electronics from other manufacturers in the last 20 years and none have failed like this in such a short time with limited use (I used it maybe once or twice a week). This is the first LG item I have ever owned. I was wondering if LG could offer a goodwill gesture by providing a meaningful rebate towards a new and improved home theater? I received no reply from LG so I amt hinking of buying a replacement from another manufacturer and staying away from all LG products and their poor customer service.