That is, the sender and receiver do not communicate at the same time. In such program, video tapes are the main medium of delivery of information to the learner. The site below provides a definition for video-based instruction and lists a success story about a man who completed a degree in clinical calculations by video tapes. Some of the advantages of radio and television broadcasting is that they Audio- and videotapes have come to play an increasingly important role as media for distance education. These technologies are convenient and cost-effective.
Most people have VCRs in their homes, and videotapes are easy and inexpensive to distribute.
These media can be used to present the views of experts, which would increase the credibility of and interest in the materials. Materials that cannot be communicated by print could be communicated this way. Video is a powerful medium in terms of capturing attention, and conveying a lot of information quickly. Producing audio- or videotape helps keeping students in track, and get people in the community involved, and may recruit new learners to the institute. Broadcast may be provided to learners through cable television network or satellite broadcast.