I saw this programme, and found all the presenters to be somewhat irritating. And it was a pretty stupid trick to show people how to break stones. There's been enough time spent trying to explain how important these places are, then they they go and destroy a stone (quarried for the purpose I believe) because they couldn't find what it was they were looking for on the dig. Or that's how it appeared. Fill up the time, or something.
Bad enough when people attempt piss-poor Keith Haringesque art on the Avenue at Avebury . . .
Are they making a film on how to deforest a large area of Panama in three easy steps, I wonder?