I've never bought the TV will make you fat & stupid theory. I watched a ton of tv as a kid & played countless hours of video games. I turned out to be pretty fit (no real defense against the stupid claim though). But I also played organised sports & backyard football (in ohio we actually have yards where you can play football) ect.
I took a break from video games a few years in college, tried to go back but they got too dang complicated and I couldn't keep up. But I still love TV...if I had more free time I'd spend it in front of the TV.