I think people don't consider that because the usual criticism of television and video games is that people spend too long paying attention to them.

One of the famous Greek philosophers complained that books were hurting people's minds because they no longer memorized information, so this kind of complaint is as old as civilization itself. There is no evidence that we would be on Mars by now already if we had never invented books or television.

Pluto? Plotto? Platti?

Seriously though, that's a horrible bowdlerization of the argument in the Phaedrus. It's actually very subtle and interesting, not just reactionary griping.