We had a friend over for dinner this week who is pregnant and she asked us how much TV we'd allowed our so to watch. She was surprised to hear that he didn't even know what a sit-com was until he was about 6 years old. All we ever allowed him to watch early on was PBS - sesame street, barney, etc. But, also, there was NOVA and Nature (with George PAge - what a soothing voice at nap time!) and those types of shows. He learned so much early on - but he was also limited to no more than two hours a day. What do your kids watch and how much?