Based on educational, social, political, and other considerations, an instructional satellite system, AVSIN (Ausio-Visual Satellite Instruction), is hypothesized which represents one possible organizational and administrative arrangement for delivering large amounts of quality software to schools and learning centers. The AVSIN system is conceived of as a cooperative public-private sector effort in which a non-profit instructional satellite corporation controls the satellite, but in which software is made available to schools on a competitive basis. Using AVSIN as a point of departure,other alternative organizational schemes and the possible future role of existing organizations involved in public and instructional television are discussed. An appendix contains an assessment of long-range social and political implications which a large-scale instructional satellite system may have for United States education. Particular attention is given to requirements for providing equality of educational opportunity. (Author/JY)