Common Sense Media released an exhaustive survey Tuesday outlining how young people spend screen time. Television is the favorite activity of teenagers in training, with 62 percent of respondents aged 8 to 12 saying they watched every day, the study said. The survey found male teenagers spent an average of 56 minutes a day gaming, while girls devoted only seven minutes. Nearly two-thirds of teens today tell us they don't think watching TV or texting while doing homework makes any difference to their ability to study and learn, even though there's more and more research to the contrary.