Many areas identified by research have not been adequately pursued, such as the effect of programs and utilization practices on rural children. Barriers to greater utilization are teachers' lack of knowledge about sources of programming for their subject-matter area and research on utilization. Utilization may be facilitated through "Cable in the Classroom," a nonprofit service of the cable television industry, which will offer educational programming for the classroom, curriculum-based support materials, and a clearinghouse for information on cable use in schools. Over 500 hours of high-quality programs will be delivered to schools each month, without commercial interruption (Kamil, 1992). Opportunities for research will arise as a result. KIDSNETT, a computerized clearinghouse concerned with programs for children preschool through high school, will be another source of information for researchers. Its "Active Database" has detailed information on 5,000 children's programs and public-service announcements and on 20,000 programs available for use in classrooms (Mielke, 1988).