Mass media can be used to help meet needs for adult education. Many projects have proved the effectiveness of radio listening and television viewing groups. New technology such as low-cost radio and TV, communication satellites, and videotape recording equipment will lead to new techniques. But the technology itself is only a beginning. The quality of the message, and the guidance and support given the listener are as important. Program goals and content should be defined with maximum cooperation of the listeners. And programs should be pretested with pilot projects, and continually reevaluated by audience feedback. Adequate provisions should be made for training production personnel, teachers and field workers, forming effective reception groups, and providing supplementary materials. Costs vary and should be defined in terms of costs per viewer or listener and educational effectiveness of programs. (MG)