Media buying service

media buying services - Independent companies that specialize in the buying of media, particularly radio and television time.
media objectives - The specific goals an advertiser has for the media portion of the advertising program.

Media buying service
Agency that specializes in the services of media buying.
Median
The middle number in a sequence of numbers. Also referred to as midpoint.

See also: Impressions, Values, Advertising budget, Variety, Advertising plan