"If the sequence inspires any metal detectorists to start closely examining the land around fallen standing stones in the hope of unearthing such a rare object then they really are stupid."
Well newcomers would do exactly that, why wouldn't they. And a percentage of old hands already do it - loads of sites show evidence of digging as you know. And of course, all prehistoric standing stones (if such it was meant to be) are scheduled so the sequence was depicting a criminal act - at peak viewing time, and chortling about it.
Sorry to sound a spoilsport, it's a great programme, but my gripe is that the Beeb doesn't take proper archaeological advice, and should.