I don't think you can do that. You know, this is not China, and even China doesn't manage to screen incoming content. This is a free society. The content will come in and out. We can't.... Your kids would get very upset if they found out that they can watch this thing over the iPad but not that. I don't think it's desirable, and it's not feasible, either.
On November 18th, 2010. See this statement in context.