Farscape and SG1 aired up to a month ahead, when the US stopped for the winter break over Christmas they just kept on airing here.Well in the case of nuBSG, Sky One did co-fund S1 of it, so just like Startz co funded Miracle Day they can show it before the other co-funder. The issue is did a network other than Sky air nuBSG before it aired on Sci-Fi.
As for ITV not finaced by the License fee, same with Sky who aired SG-1/SG: As I recall with SG-1/SG:A the UK might have aired a few days ahead of the US.
All I was saying was it's not unprecedented for it to happen. Not knowing the conditions of the deal it could be a matter of Starz owning the international rights and BBC only owning the UK rights with BBC Worldwide working as the production company. So in that case it would be more along the lines of a US show with BBC Co-funding.