For teens, too much TV can impair learning later, study says

FOR TEENS, TOO MUCH TV CAN IMPAIR LEARNING LATER
[SOURCE: The Christian Science Monitor, AUTHOR: Daniel B. Wood]
If your 14-year-old is sitting in front of the TV for hours a day, your concerns about your teenager's education may be borne out. That's because watching three or more hours of television a day leads to poor homework completion, negative attitudes toward school, bad grades, and poor performance in college, according to a study published this week.
http://www.csmonitor.com/2007/0510/p03s02-ussc.html