Go outside and play tomorrow!

It's something many a parent has said to a child: turn off that TV and go outside and play.
Come tomorrow, one TV network will do its part -- by turning itself off for a while. Nickelodeon will go dark for three hours in an effort to get its viewers to get out and exercise. It's the fourth annual worldwide day of play and it begins at noon. Later, Nickelodeon will highlight kids who been inspired to get more exercise. One is Kenderick, a 13-year-old boy from Little Rock, Arkansas. He says he's dropped 40 pounds since getting into the workout groove in April.