The first season of those show was phenomenal. Loved it. Very nostalgic. Unfortunately the second season fell a little flat for me, and that is because the main antagonist (Matthew Modine's character) is not seen in the second season. I think that is what sent the show downward. I think viewers could identify more with a human antagonist than " the darkness form another dimension etc" that has no real motive that we can understand vs what we can all understand might be Dr Brenner's motive.