This series was shown on the History Channel in the UK and Canada during April. I watched it on Reelz in May, and didn’t learn anything new about the Kennedys that hadn’t been out there for years. According to Wikipedia, it’s supposed to be released on Region 2 DVD on July 4th, 2011.
The series is really pro-Kennedy on the whole. Several of the performances are brilliant though the actor who played Joe Kennedy steals the show.