A friend came over and started fussing with the cables on the TV and problem disappeared. He said there was a cable signal leak. Problem is that means the digital ballast is still acting like a radio broadcast signal.
It just kind of tapped into the open cable leak. Article I read says it also can affect AM radio, but not FM. When I tested it while playing my radio with AM, it gave a slight static noise, but nothing like the TV.

The dealer I brought it from over a year ago offered to swap it and I will do that.

I wonder if anyone else has a digital ballast that is broadcasting RF and they don't know (or a cable leak they don't know).