@boomerang,
I agree - I don't see that these any any different than any other toy or TV program that claim it is educational. I did get one of these videos for my younger daughter, but did not ever open it or use it. Not that I was against it - just that I never thought of putting it on for her.
I don't think they really "watched" any TV or videos until around the age of speaking at the oldest. And then it was usually PBS shows which is probably about the same sort of thing.
I'm neither for or against this sort of thing, but aren't they geared towards infants? Seems odd to have TV for an infant just in general to me.