I've taken this approach with my kids, and although none are teenagers, I've still never got any kickback. For a while now they will even self report and call me if rubbish comes on. Actually, at this point they'd just change it to something quality themselves. I wonder if the reasons I don't like certain videos has sunk in for them, and they're just not interested in weird stuff now? A couple of them push with computer games though. I'm clear and consistent in allowing no first person shooters yet, but they try to get away with it if they think I'm not paying attention.