Apparently, not only are their minds going to mush but there is a link between blood pressure in children and their choice of TV as their inactive pastimes.
To some it may be a chicken-and-egg issue, but I am going for broke on this one to say that the brain mush-ification is causing kids to choose TV and leading to all these other bad things.
I watch cartoons with my son on weekend mornings and I was so sad when he moved from Arthur and Animalia to the Cartoon networks and WPIX. Some serious weird stuff on those channels. But watching this stuff prepares them for adulthood. Look at what the average American watches: American Idol, I am a Celebrity–Get me Out of Here, Survivor, Dance your A@@ Off, Deal or No Deal. The real worry is that if the mushification of the brain starts too early, then by the time a person is 25, his or her brain will be liquid and pouring out of his or her ears.
Now, THAT is something to worry about.