The National Instructional Television Center (NIT) aims to reduce the time of bringing about educational innovation from the usual 15 years, achieved through traditional means like pre-service education and workshops, to five years. Its procedure in doing this is to identify significant ideas and translate them into useful television programs. This booklet describes NIT courses, which consist of television series. The course descriptions are organized by subject matter. For each, the appropriate audience level (which ranges from primary through senior high school as well as teacher training and higher education) is indicated. Also included are an index of courses by grade level and subject matter, a list of NIT prices, procedures, and policies, and descriptions of NIT services and professional publications and films, which deal with instructional television. (JK)