Important changes in classroom television and the technologies that accompany it have taken place. Videocassette recorders have become more plentiful, giving teachers greater flexibility in presentation and scheduling; the growth of program delivery systems such as videocassettes, satellite, cable, and broadcast services has given educators more sources for programming; and newer technologies such as interactive videodiscs have begun to enter the nation's classrooms. Between February and June 1991, almost 6,000 educators throughout the United States completed questionnaires regarding the availability, use, and support of school television. This report summarizes the results of the study, providing key measures of the use of instructional television and video, availability of equipment and programming, and support and resources devoted to instructional television. The report also summarizes teachers' attitudes toward the use of television in the classroom, notes the growth of several new television-based technologies, and suggests what trends will develop during the next few years. The information is intended to assist professionals in education, broadcasting, and government to make more effective use of classroom television and related teaching resources, and ultimately to help improve teaching and learning. An appendix provides a summary of the study design and methodology. (Author/SWC)