This basic, entry-level guidebook introduces public broadcasters to videotext or teletext technology and the range of services it can provide. Following an explanation of basic terms and a review of the early history of videotext, a summary of research findings from commercial and public trials of teletext addresses such topics as consumer…

Future developments in communication technology promise to have both positive and negative effects on information sources, messages, the media, and audiences. An increased tendency toward monopolistic control, for example, might accompany improvement in information management. A significant problem already in evidence among information…