Try unhooking the digital cable TV connection and see if the issue goes away. If so, you need some type of an in-line isolation transformer to get rid of the noise.
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It was the RG-6 cable coming from a face plate into the back of a digital cable box terminal if you can believe that. I guess the wire acted as an antenna, as soon as I unplugged it the static was gone. I have since carefully placed the TV cable away from other wires and will investigate purchasing a better cable with improved shielding.