I saw season one and two and loved it and then I started reading the books...including the 4th one, Time's Convert, and realized that the show producers had really hacked into huge chunks of story; info that really clarified different parts of the characters or stories were just written out for the series and that was only clear to me after reading the books! Why they short-shifted so much info is bizarre. They could have kept much of it in and made it close to the books, extended the seasons and really done Harkness's books justice. As is, it's no wonder that so many people give up on it...what was scripted was cursory.