Why are people so against TV?

Seriously. I know there’s a lot of crap on there, but it seems that people are happy to knock TV as being worthless, per se, where they don’t make the same generalisations about other media – films, poems, writing, and the like. Its something that has interested me for a while, and generally, I think, reflects on the part of the opinionator a lack of clear thinking. TV as a whole is no more worthless than any kind of art or story telling form.