I'm no fan of the misconception that babies need TV. I mean, there are at least 2 cable channels to cater to babies, and Sprout clings onto the old "midnight feedings" myth to rationalize toddler friendly programming at midnight. I mean, really.. be cool. Qubo has He-Man and stuff at that hour. Perfect place for some classic Electric Company/Reading Rainbow/Sesame Street stuff.
But for some reason or another, there was a huge downward spiral towards that demographic in the 90's. While Barney started it (maybe moving things down by a year), it was Teletubbies that really turned preschool programming into prenatal programing. But then again, Sesame Street does have itself to blame as well. Baby products featuring Sesame Street characters cemented the Sesame Street is for Babies myth.
As I always say, there was a long period on Amazon where parents complained that their way too old to care year old wouldn't sit through this video or be quiet to that CD... facepalm worthy comments that think Sesame Street was made just to shut 1 year olds up for 30 minutes. No wonder they had to put a lengthy, head up its own butt disclaimer on Old School 1 and 2. Some dumb parent's going to spend 30 bucks on one of them and whine that it didn't keep little Sidney, age 14 months, from running around the house and out the door. Trying to keep a kid that just learned how to not sit in one place? You know that's impossible.