When parents think about their children's exposure to environmental risks, they might think of lead, pesticides or grass pollens. In fact, the greatest environmental exposure for most children is television. They spend more time watching television than in any other wakeful activity, and it affects their health and well-being in significant ways. For too long parents and even pediatricians have asked: "Is television good or bad?" Television is inherently neither; it's time to move beyond such black or white thinking.