First post here. I too am have been experiencing the crackling noise. I have had my Samsung DLP since 2006 and have not had any issues until recently. Here is what happens. I will be watching the TV for 20 minutes or so and then a loud crackling sound happens (like fire crackers) and I lose all sound. This happens to me on multiple inputs (HDMI, Component, AV). The crackling sound is coming from the TV itself as the volume setting has no impact on the crackling sound. I have tried factory resets based on some other forum advice, which did not work. It is almost like something is overheating, but why now after I have been using this TV without any issues for the past 5 years?