Recent studies suggest that Educational Television (ETV) broadcast from geostationary satellites can markedly reduce the cost and time required to provide educational opportunity for the citizens of large, less-developed countries. The sheer volume of educational needs precludes, however, the possibility of satisfying very many of them with only a few (1 to 10) information channels. A thorough systems analysis of instructional satellite systems (if such be possible) would examine the myriad interactions conceivable among components of the technical system, the educational system, the economy, and society as a whole. While we shall not altogether ignore these interactions, our concern here is less ambitious. The purpose in this paper is simply to point out the economic and technical attractiveness of satellite-based instructional radio systems with 50 to 200 channels. (Author)