There ara a variety of applications of televised video Instruction.
For example, in the case of a university of education, the followings are some of applications:
Exchanging classes among schools
Training teachers-in-their-workplaces as a refleshing education
Training future-teachers (observing real classes in the remote site, practicing teaching from the local site)
Open school for the people in the community
Applying telecommunication technology
to the future-teacher training