I expect DirecTV is paying.
In general broadcast TV stations within the local area can choose either "must carry" or "transmission consent." If they do "must carry," they don't get any compensation from the satellite or cable co, BUT, the sat/cable/whatever is required to carry them. If they choose to negotiate for compensation in return for their signal, there's no guarantee that the two parties will come to terms, and the station can't go back to must-carry status for three years.
http://www.fcc.gov/mb/facts/cblbdcst.html