It was a good programme - thanks for the reminder - I liked the stuff about catching the moon at a standstill between the trilithons. It'll be a good afternoon on Saturday (22nd) to watch for the near-maximum southerly moonrise. I'm not sure about the exact time, 3 to 4, I would guess. Anywhere'll do - doesn't need to be Avebury or Stonehenge, could be a local stone row, for instance.
The time of the Neolithic / Bronze Age transition also corresponds broadly to what western astrologers would describe as the cusp between the Age of Taurus and the Age of Aries. Aries being symbolised by a sacrificial lamb, of course.
With perforations a superior sleeve, to the beaten hats, would allow it to function as a circular slide rule (I'd better tell Erich) ...