Kids today watch a lot of television, so it's not surprising that the majority of tot-focused programming features educational information. Shows often include storylines about the importance of proper dental care. Networks like Nickelodeon and PBS sometimes supplement their teachings with Web-based games or activities to provide kids with an interactive learning experience. In a world where even Spongebob has a cavity-fighting game, you're sure to find something online that will amp up your kid's enthusiasm about brushing his teeth. Of course, many of these games are supported or funded by dental hygiene companies, who are looking to promote both healthy smiles and their products.