My child does not watch children's television, but I still want to say a "hooray" over this small step.

Why are they so determined to put sugar in breakfast cereal? As far as I can work out, things that are good for you taste good. The biggest problem with introduction is a child's tendency to be contrary. It's just a matter of finding the right motive. Like with reverse psychology, they can take to some amazing things if they are made to believe they are being granted a privilege.