"The average student is likely to learn about as much from a television class as from ordinary classroom methods — There is no significant difference between the two methods — Televised instruction has been used with greater success in the grades than in high school or college, in elementary school children are enthusiastic over television classes — In the two other cases, high school and college, students are equivocal or in some cases unfavourable — Is there any kind of student who profits more than other kinds from instructional television? — Does size of class make any difference in learning from instructional television? — What we know and must need to know about learning from instructional television? — Such are the questions the author deals with in this chapter." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 2084, topic code 410.320)