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 Township of Indiana was incorporated in 1805 and is 17+ square miles in size. It was the fourth township formed in Allegheny County north of the Ohio and Allegheny Rivers. The Township has approximately 30 miles of its own roads and there are more than 22 miles of State and County roads within the municipality.