The question is rather short on details but if the noise is a pop, buzz or snap prior to the set turning off I`d start with a power overload or a failing power supply. Use a good UPS with voltage and frequency filtering to reduce mains noise and droops or spikes from other large loads in the building.
Danville, Indiana. Danville is a town in Center Township, Hendricks County, Indiana, United States. The population was 9,001 at the 2010 census. The town is the county seat of Hendricks County.
The Carnegie library in Danville, Indiana. As of the census of 2000, there were 8,032 people, 2,350 households, and 1,670 families residing in the town. The population density was 1,047.7 people per square mile (404.2/kmÂ²). There were 2,506 housing units at an average density of 409.1 per square mile (157.8/kmÂ²).