Amazon UK has the BBC DVD already on pre-order, release date has been shifted to May 3rd, 2010.
This the PAL version, most likely only viewable in Europe.
I would assume there will be a Blue-Ray Disc also, since it has been produced in full HDTV, but I have no further info on that.
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos