Read Amusing Ourselves to Death by Neil Postman. Or No Place for Truth by David Wells. Both will give you sufficient grounds to throw your 328 inch plasma screen television into the sea. But if you don’t have time (or, you can’t because of your television-induced inability to read more than 500 words at a time) read this.
[edit: apparently the link is not consistent and some of you have been sent to read a story about a rhinoceros or something like that. The upshot of the article is that television is killing you. So don't watch it.]