The frequent viewing of TV has strengthened this faculty to the point that many viewers are visually dependent.
TV can be an effective teaching tool.
The video camera, VCR and television, when properly used, have become invaluable teaching tools in my studio. There is an affinity between the TV or movie screen and teaching a musical instrument. To make a movie, there can be 50 takes of one 30 second scene over a period of three days, working 12 hours a day. The finished product is a good show. It is the same with teaching.