The availability of television reduces the amount of reading children do  When television is made unavailable, a nearly universal increase in reading, both by parents and by children, is reported
When television is available again, the level of reading by both parents and children relapses to its previous level
Adults read less than they once did because there are so many other activities to divert them. This can be seen from the fact that the more time they spend on such other activities, the less they read. Conversely, the less they read, the more time they spend on such other activities.