The Hidden Medium: A Status Report on Educational Radio in the United States, 1967

With support building for federal aid to public TV, the advocates of public radio found they had to act quickly to make their case. National Educational Radio, a division of the National Association of Educational Broadcasters, hired Herman W. Land Associates to study the field and its potential. The resulting book, The Hidden Medium: A Status Report on Educational Radio in the United States, was published in April 1967. Overview and Summary
The oldest of the electronic media, going back in service to experimental beginnings as station 9xm in the year 1919, educational radio, almost a half century later, remains virtually unknown as a communications force in its own right. Overshadowed first by commercial radio, then by television, it has suffered long neglect arising from disinterest and apathy among the educational administrators who control much of its fortunes.

The Hidden Medium, Overview and Summary, April 1967

With support building for federal aid to public TV, the advocates of public radio found they had to act quickly to make their case. National Educational Radio, a division of NAEB, hired Herman W. Land Associates to study the field and its potential. The resulting book, The Hidden Medium: A Status Report on Educational Radio in the United States, was published in April 1967. See also Jack Mitchell's account of guerrilla radio activism during the period. Overview and Summary
The oldest of the electronic media, going back in service to experimental beginnings as station 9xm in the year 1919, educational radio, almost a half century later, remains virtually unknown as a communications force in its own right.