What's Been Done, What's Being Done, and What Could Be Done

This paper explores the progress public broadcasting (originally called "educational television") has made in taking advantage of a relatively new application of tecnnology: digital information services. How public broadcasters have pursued this technology and how it may become an integral part of the future of public broadcasting are reviewed. Three of the more successful digital information services that have been provided by public broadcasters (i.e., closed captioning, electronic bulletin board services, and electronic text) are discussed. The paper then discusses three areas that are currently being pursued: digital radio broadcasting, interactive video data services, and the broadcasting of data over the vertical blanking interval (VBI) of public television stations. A vision for the future of public broadcasting is considered, identifying some of the important opportunities tha