hadn't spotted that one coming up - thanks
Incidentally, I see one of the references for the programme is for Butser Ancient Farm. I went there on Tuesday , accompanying a coachload of 7&8 year olds. The reconstructed Celtic round houses there are really good. Lovely fire on the go inside the largest one, which was very welcome on such a wet, cold and windy day!
Overall the site is quite small, but worth checking out if you're around that way (Surrey/Hampshire). They do interesting little day courses too.
http://www.butserancientfarm.co.uk/