I can highly recommend this TV show to anyone at all interested in aviation or (Cold War) history. It seems to be playing fairly often on the National Geographic Channel lately:
Its the most famous military installation in the world, yet it doesnt officially exist. Area 51– a site for covert Cold War operations– has long been a magnet for crackpots, conspiracy theorists, and the overly curious. While there may not be truth to the rumors that Area 51 is a haven for UFOs and extraterrestrials, its clear that our government has been up to something in Area 51 for decades, and it turns out there is a kernel of truth to even some of the wildest speculation. Underground tunnels Hidden enemy aircraft Secret government UFO files Now, after years of silence, for the first time Area 51 insiders spill their secrets and reveal whats really been going on inside the most secretive place on earth.