This study examines alternatives to direct transmission of television and radio programs for courses with low student enrollment at the Open University. Examined are cut-off points in terms of student numbers at which alternative means of distributing audio or audio-visual materials become more economical than direct television or radio transmission, organizational and design implications of using alternative distribution systems, and recommendations regarding alternative methods. This final phase of the study explores comparative costings, the organizational and production implications of alternative media, and some possible implications for a new studio center and a renewed BBC/OU agreement. The central concern is to study those ways of providing audiovisual media in student homes that are likely to be feasible in the near future. An examination of university courses, student enrollment, broadcast times, and home based audiovisual equipment is presented. Costs are calculated for use per hour, per single tranmission, per repeat transmission, six year total, average per student (six years), likely number of users (six years), and a per user per repeat transmission category. Formats considered in this study include radio, records, flexi-discs, audio-cassette, television, video-cassette, multi-media, telephone teaching, teletext, electronic blackboards, digital audiovisual, and personal computers. (RAO)