For those of lucky enough to get Channel 5 (!) there's a documentary on tonight at 8pm for one hour called (perhaps rather ambitiously I believe): "Stonehenge: The True Story".
The blurb says: "Stonehenge is one of the world's great archeaological enigmas. It was, until now, believed to be a place where Stone Age man worshipped the sun. This documentary examines a new theory which posits that this ancient monument honours both the sun and the moon."
Clashes with Holby City, though :-(