N.C. Gen. Stat. § 99-5: Negligence in permitting defamatory statements by others essential to liability of operator, etc., of broadcasting station.

The owner, licensee or operator of a visual or sound radio broadcasting station or network of stations, and the agents or employees of any such owner, licensee or operator, shall not be liable for any damage for any defamatory statement published or uttered in or as a part of a visual or sound radio broadcast, by one other than such owner, licensee or operator, or agent or employee thereof, unless such owner, licensee or operator shall be guilty of negligence in permitting any such defamatory statement. (1949, c. 262.)