If you're not watching Cosmos: A Spacetime Odyssey on Fox (ironic, I know) you and your kids are missing out. It is simply brilliant. The host, Neil DeGrasse Tyson is a fantastic host (and astrophysicist). The kids are mersmerized by a subject that previously passed them by.
For me, I am still reeling from last night's episode dealing with Isaac Newton and all he achieved. As a god-fearing citizen he also dabbled in the ancient art of alchemy and was of course a brilliant scientist who established the existence of gravity and posited that if you fired a canon hard enough it would do a complete lap of the earth, setting up space travel...incredible!