The Flintststones & knowing your target audience

This one has nothing to do with classic rock (except that it's from 1961) -- but it's just as shocking as the backwards masking in "Stairway to Heaven." In the commercial linked below, Fred Flintstone and Barney Rubble extol the virtues of smoking Winston cigarettes. Yes, "The Flintstones" originally ran in the evening during prime time, but children still made up its loyal audience. Didn't Winston and the network know this? Or did Winston exploit the first rule of marketing (know your audience) by strategically targeting children to build a new and growing market. Decide for yourself and click on http://www.youtube.com/watch?v=rX5CwF4OW8A.