Television has a bad side. According to a report from the University of Michigan , the average American child has seen sixteen thousand murders on TV by age 18. Indeed, programs explicitly designed for kids often contain more violence than adult programming, and that violence is often paired with humor. Every single animated feature film produced by US production houses between 1937 and 1999 contained violence, and the amount of violence increased throughout that time period. Researchers from the University of Michigan found that just being awake and in the room with a TV on more than two hours a day -- even if the kids aren't explicitly paying attention to the TV -- was a risk factor for being overweight at ages three and four-and-a-half. This may be related to the fact that two thirds of the twenty thousand television commercials the average child sees each year are for food. The American Academy of Pediatrics, in their wisdom, recommend that children under age two have zero hours of screen time. (Meanwhile, a bevy of DVDs are marketed to parents of children age zero to 2, promising to "teach your child about language and logic, patterns and sequencing, analyzing details and more.") Despite the warning, however, many parents of infants age 0 to 2 do allow their children some screen time. In 2007, Frederick J. Zimmerman of the University of Washington (now at UCLA ) wondered what the effects of TV watching were on those infants. He collected data from