The report summarizes information about the history, technology and operation of educational television (ETV) in the U.S. The history of educational broadcasting is outlined from 1941 when the Federal Communications Commission (FCC) approved applications for five noncommercial FM radio channels, to 1967 and the passing of the Public Broadcasting Act. The report describes regulations covering ETV and points out that educational stations concerned mostly with classroom instruction can use a reserved portion of the broadcasting spectrum from 2500 to 2590 MegaHertz. Non-technological language is used to describe how microwave relay, TV translators, and cable television (CATV) are used in instructional systems. The report describes both private and government sources of funds for supporting ETV, and outlines the procedure to get FCC approval for an ETV station. Various sources of educational programs are listed, as well as private and government organizations which provide other kinds of help to ETV broadcasters. (MG)