Björk explains television from the poetic perspective but warns you not to let poets lie to you.

All those dots that make up the picture are "millions and millions of little screens," and so "you are watching very many things when you are watching TV."

Your head is very busy all the time to calculate and put it all together into one picture. And then because you're so busy doing that, you don't watch very carefully what the program you are watching is really about. So you become hypnotized. So all that's on TV, it just goes directly into your brain and you stop judging it's right or not.  You just swallow and swallow. This is what an Icelandic poet told me....

Full text at the link, but it's better in video form (if you can handle all those tiny little dots):