Found this recently, loved it, funny in parts but story line is good, few bits that remind you of one actors past career, duchess in a couple of episodes,. Still got the last series to go. As each series is about 20 episodes. But it's really good, given it was made some years ago now its worth watching. Though I have one gripe in series 2 od someone in the series been brought in after dying - no not from the parallel universe either. The actors sometimes play 2 characters note I don't say different. But if you like Sci fi, it's good