TV has a strange effect on the eye muscles. It tends to paralyze, or to hypnotize, the motor muscles of the eyes. So that the much television-viewing person tends to have a very poor ability to move his eyes across the printed word, or on the printed page. And he needs exercises to correct this. And the exercises need to be taken quite early while he's in his early years because otherwise they harden. But the ideal exercise for this purpose is the trampoline for loosening up the eye muscles.