Broken arm?! Poor you. That's no good at all. I hope it heals up nice and easily.
I'll give the programme a go now you've recommended it. I saw the words 'ley lines' in the summary on our tv, so appreciate your 'dowsing warning' :)

While you're recuperating, you might like Alice Roberts' thing about the recent discoveries about the various types of humans that were living on the planet in recent times - driven by people working on genetics. I thought it was very interesting. It's called something about 'lost tribes', it's on the iplayer.