National Association of Broadcasters. An association whose membership is largely composed of radio and television stations.

National Advertising Division of the Council of Better Business Bureaus. This organization serves as a major self-regulatory mechanism for advertising.

"National Advertising Review Board of the Council of Better Business Bureaus. When an alleged problem arises with an advertisement, and a satisfactory solution is not obtained via the NAD, above, the NARB acts in the capacity of an appeals board. It reviews the decision of the NAD, and passes judgment on it."

"Using a broadcast medium to appeal to audiences with special interests. For example, the ""All Knitting Station"" would be a narrowcast, because it appeals to an audience with a specific interest."

"Advertising which is aimed at a National Market, as opposed to Local Advertising."

A nationally distributed product brand name. May also be distributed regionally or locally.

An item offered free or at a discount with the purchase of another product. The item can be positioned close to but may not touch the purchased product. A type of product promotion.

Developed film that contains an image that has reversed shadows and light areas.

The costs associated with services rendered by an advertising agency excluding the agency commission.

The combined cumulative audience exposed to an advertisement.

A national or regional group of affiliated broadcast stations contractually bound to distribute radio or television programs for simultaneous transmission.

Programming time the network controls on each of its affiliate stations. Also referred to as network time.

"A soft, course wood pulp paper used in printing newspapers."

A measurement of the percentage of U.S. television households tuned to a network program for a minute of its telecast.

"Radio and television advertising that is designed to educate and promote ideas or institutions, e.g., public service announcements."