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National Spot:

All non-network advertising done by a national advertiser in local markets.

National Advertiser:

Advertiser who sells a product all across the country.

Network:

An organization composed of interconnecting broadcasting stations that cuts costs by airing the same programs.

News Diffusion:

The spread of information through a society over time.

Noise:

In communication, anything that interferes with the delivery of a message.

News agency:

An organization that collects, edits and distributes news to subscribing newspapers.

News desk:

The newsroom, where the collection of news is organized, and where reporters are based (in US, city desk).

Night editor:

The senior production executive of a daily paper.