But TV does have bad effects — among other things, it causes us to believe that we have a deep knowledge of facts about subjects we actually have only a superfi

But TV does have bad effects — among other things, it causes us to believe that we have a deep knowledge of facts about subjects we actually have only a superficial knowledge of artistic depictions of (cf. the CSI effect in jury trials). Its unfortunate political and social effects are notable when one looks at the last few decades. The world would probably be much better if people watched less TV.