The average youth devotes nearly eight hours to media every day. (Why yes, that is more than a full-time job.) Forty-three percent of children ages 4 to 6 have a TV in their bedroom. Seventy percent of teens have their own video game console. And in 64 percent of American homes, the TV is on during mealtime. But whether our media T-shirt dons “I heart” or “I abhor,” the responsibility lies squarely with the “I.”