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Text 10
W：Television is the most significant influence on children in the United States，because the habit of watching television usually begins before children go to school.And，by the time that the average child finishes high school，he or she will have spent 18，000 hours in front of a television set as opposed to 12，000 hours in a classroom.
Parents are concerned about these figures and the lack of quality in television programs for children.They are worried the violence in many of these shows may have a negative effect on the young minds.Many parents would like to see fewer commercials during programs for children.Educational television has no commercials and has programs for children that many parents are in favor of.The most famous of these is "Sesame Street"，which tries to give preschool children a head start in learning the alphabet and numbers.It also tries to teach children useful things about the world in which they live.
Even though most parents and educators give "Sesame Street" and shows like it high marks for quality，some argue that all television，whether educational or not，is harmful to children.They say that the habit of watching hours of television a day turns children into bored and passive consumers of their world rather than encouraging them to become active explorers of it.
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