Where can I see this show?
By at least two ways, Chuck--
Amazon Video (Streaming) NOW (which you own and keep forever, I
think):
or buying the 2-disc DVD (which will be released next month, April 12, also on Amazon):
at least a 3rd option is if you subscribe to BBC America--problem with that, in literally only a few days from now, the 5 episodes will no longer be available (the series has been available on BBC America since/about January 21)