Marianne posted this on the FanZone: http://www.bbcshop.com/invt/bbcdvd2250
(While it provides a link to an explanation of DVD region encoding, it doesn't say which regions this DVD is... )
Thanks for that addition, Rose--do you happen to know if either of those sources offers a Region 1 version??
Since it's not scheduled to be broadcast on television in Region 1 till February, it doesn't seem likely, but hope springs eternal...