I'm not sure how much I'm allowed to say, since a colleague of mine is working on this, but this does have a U.S. distributor now and they're working on the DVD/Blu-Ray now. Not sure when it'll see release.
Might be a case of "No Correspondence will be entered into". But one would hope not. I have not seen the series and never heard of it until today and ordered but canceled when I then read a DVD/Blu is in the planning stages on USA. I don't really need the UK edition Steelbox edition but the book might be interesting.