Two books that convinced me never to watch TV again where Jerry Morans's Four arguments for the elimination of television and Edward Bernay's Propaganda.
You really have no idea how bad television is until you read that book. One thing I remember from the book was about brainwaves while watching television. The screen has a flickering that induces a hypnotic state so the messages that come on the screen are beamed deep into the psyche, therefore television is messing with people on a really deep level and people have no idea about it.
The other book propaganda, written in 1928, was shocking because of how advanced thr techniques for controlling thoughts and opinions was 80 years ago, I can't imagine what they have now. Whatever it is though you know its being transmitted through the television.
Bottom line is this, its doing things to you that you don't know about. Don't watch it.