Well, sadly, there are parents who think that anything from when they were little is dated. And, it also depends on the local PBS station. For instance, our big PBS station, WGBH Boston doesn't like Sesame Street, since they only air it at 6 am, and 10 am as a filler, and they never advertise it. However, the dinky PBS station from Rhode Island airs it at 7:30, which is a much more convenient time, and they even have promos for it occasionally. Because they're kind of an old-fashioned PBS station.