My main concern with TV is that it seems to be influencing our children into a "consumer culture".
As opposed to their parents, who are what?
They start to believe the hype.
Again, so do their parents. Including the psychological hype.
Even PBS brands out all of it's characters. Not only do my kids not have TVs in their rooms, they don't watch TV regularly at all (I would estimate 2 hours every 2-3 weeks in movies). They don't know any of the toys that are available unless we actually go to a toy store. I prefer their ignorance to the sense of entitlement that I see in many children today.
I would submit that awareness does not necessarily breed entitlement if children understand that everything has a cost in terms of the time one exchanges to possess certain goods or services - not that i'd express it that way to a child. From a very early age we made our children aware that everything has a price, and that they(or Mom and Dad) must trade their most precious resource, their time, to have it. They learned as early as possible about reality/fantasy, material wealth/things (both good and bad), etc. As a result, when Grandma(raised without TV) last came to visit and suggested "going to the mall", our girls asked, "Why, what do we need to buy?" All this while watching their fair share of TV.
The American Academy of Pediatrics recommends NO TV WHATSOEVER for children under the age of 2.
The American Academy of Pediatrics has recommended all sorts of things over the years. Not all have been good. Generally, I am very suspect of absolutes - they tend to be poorly thought out.
Recently there has a firm link found between television watching and ADD.
Actually, it's more a statistical relationship. And their is also a similar negative relationship for lack of cognitive stimulation, emotional support, etc. And guess what? Children with a stay at home parent have less problems as well. Children with two parents have less problems than single parent families. TV is just one of many factors - and it's an easy target.
The scariest idea is that the fast editing of TV actually REWIRES their young brains. If you think about it, during our evolution we have never had to process images with the rapidity that TV requires.
Well, that isn't by any means medically proven or even well studied enough to cite as scientific fact. And, we are still "evolving" - somewhat. Perhaps learning to process images rapidly may be a beneficial adaptation in a world with increasing technology. The truth is that we really just don't know, which scares people into grasping at all sorts of explanations.
TV can definitely turn into a psychological addiction. I worry about any addictions at all because the less adaptable you are, the worse you will react to any new situation. My brother in law just can't go to sleep without the TV on. When he stays at our house, he would rather sleep in the family room couch instead of in the TV-less guest bedroom. Both my son and daughter learned how to read books when they were 3 years old. A big motivation for them to figure it out was probably boredom. But their determination to meet the challenge as well as their love of books has lead to them doing well in all academic areas, and even skipping grades in school. And I truly believe that the lack of TV watching really had something to do with it.
I have this feeling that your children would have done well with or without TV, as you seem to be a caring parent, and you were blessed with good kids. I think that a lot of the "perils of the day", such as TV and video game use by children, are highly over-rated sare tactics. I have known kids with great parents who did all the "right things" and the kids turned into horrible adults. Conversely I know kids who had all the worst and succeeded wonderfully.
Regardless of our lineage, we are all born with unique traits, we add a little nurture to the nature, some have good luck, some have bad, and we get a wide range of results. Such is life. There are endless possibilities, and our ability to control developmental outcomes simply isn't as good as we think it should be. I'm not suggesting we don't try, but I don't think TV and video games are the prime culprit - just a piece of a much larger puzzle.