People looking retarded when they watch TV or play a game doesn't mean anything at all. I've seen this pseudo-academic nonsense before. It is often repeated and always completely fucking vacuous.
No, really, we've known for decades that television is poison; that it melts your brain and promotes degeneracy. If you want a longer version of it, here's Fred Reed: http://www.fredoneverything.net/Telescreen.shtml
Or here's Paddy Chayefsky:
https://www.youtube.com/watch?v=MTN3s2iVKKI
Or here's Paddy Chayefsky:
https://www.youtube.com/watch?v=MTN3s2iVKKI