This is a list of broadcast television stations serving cities in the U.S. state of North Carolina North American television frequencies are different for over-the-air (also called terrestrial) and cable television systems. Over-the-air television channels are. One drive behind this is falling television ratings, which lowers the cost of individual commercial slots. To compensate for lost revenue, TV companies are airing. Features a database of program listings for hundreds of public radio stations around the world. Includes audio links. Nielsen Audio measures all forms of audio content including AM/FM, streaming and podcasts. Nielsen Audio also evaluates audio ad campaign delivery and effectiveness.