UNC-TV broadcasts throughout the state of NC. In the early 60's the state even used the TV in classrooms. I was forced to watch a boring teacher on TV in High School while the paid teacher in the class goofed off. The state had a complete course list. Edward's dad, a republican until his son ran for office, lived near Pinehurst and would have been able to get the Fayetteville or Chapel Hill broadcast with a simple rabbit ear. His dad was a plant manager, I doubt his dad was studying simple math. Maybe a management course, etc.