SEASON PREMIERE: This final season of Orphan Black begins powerfully, and emotionally, in ways that I don’t want to even hint at revealing. But I will say this: I’ve previewed the first three episodes of this last go-round for this series, and Tatiana Maslany, playing so many complicated roles, continues to knock me out with her versatility. For a full review, see David Hinckley's All Along the Watchtower.