Watching less TV won't make kids exercise more
According to the study, long hours spent watching television has contributed to the obesity epidemic among children, but killing your television won't reverse the trend. Watching TV and physical exercise are not "functional opposites." If they were, everyone would be on a "no television" diet.
Kids, feel free to keep this study in your back pocket. You can whip it out whenever your parents tell you to turn off the TV in the hopes of motivating you to engage in "vigorous activity." I believe that speech goes, "It's a beautiful day outside. What are you kids doing in here? When I was your age...blah blah blah...get a job."