I called Samsung for service on Thursday morning, July 18th. I was told I would receive a call from the service company in 24 hours. I asked the name of the company and where they were located. We were at a rally over the weekend and did not receive a call. I called Samsung again and was told that the response should have been 24 to 48 business hours. I called the service firm and they were here Tuesday afternoon, July 23rd, because they only come to our community on Tuesday afternoons. They found I had not set the panel correctly. Here about 10 minutes. I cannot complain except for the information given by Samsung during the first call.