Each series has a weak episode but they're still great. As my comment suggests, I had very low expectations as someone who loves the original stories and the Jeremy Brett adaptations however I really enjoy them. A refreshing modern take on them with loads of subtle and not so subtle nods to the originals. Would definitely recommend.I didn't realise there were so few episodes. Given the hype around it, I might check it out now I know it won't take long to get through it.