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I have a Samsung HL-R5067W DLP TV for over 2 years. The first year the TV worked great. But ever since we moved, the TV started to be erratic. Sometimes (more oftern now than before) the TV will not turn on with a low humming sound and flashing "LAMP" light. During this time the TV won't turn off with either remote or panel button. Eventually in a minute or 2 it will shut down itself.