Sid the Science Kid Gets Vaccinated
If you're looking for a cool kid's show about science, check out Sid the Science Kid. It's hilarious for adults too, and it covers scientific topics in a kid-friendly way. Take a look at this episode on vaccinations for example:
It even mentions Ignaz Semmelweis for crying out loud. The website seems good, although the videos are only available in the U.S. (boo) and the positive messages about science and thinking are really hope-inspiring about the future. Keep it up, Henson company and PBS!