Searching for kid's videos on civics and American history.

I think kids should be exposed at an early about the origins of the United States, the Constitution, and how things work politically. By that, I mean how taxes are collected and spent, the election process, the various offices (local and fed), and the powers vested in them. I realize this has been largely left to schools, but I think it's too important for parents to sit idly by (especially in today's political climate) without having at least some input of their choosing. Not unlike a home-school civics class.

I'm looking for a source of well-done teaching videos that lays it all out in a way a 6-year old can understand. By solid, I basically mean non-left. Hoping the poly board could recommend a few. T.I.A.