My favorite series of all time. Excellent storytelling with an incredibly complicated plot that somehow manages to pull it all together for a satisfying explanation and conclusion at the end. The acting is exceptional, the soundtrack is spectacular, and the visual devices and cues are incredibly well done. The science behind the sci-fi is sufficient to maintain suspension of disbelief while provoking deep thought about the nature of people, time and space, causality, and personal responsibility.
I have watched this series twice now. The first time I was a little overwhelmed by the intricate plot and copious connections between people, places, and times. The second time, years later, I was better prepared for what I was about to experience and absorbed more of it. I was still blown away, perhaps more so now that I understand it better and can appreciate just how brilliant the writing was. A truly phenomenal story brilliantly executed in a compelling and touching way.