I will admit I haven't watched the original show on Nickelodeon, but I've lived through its hype. Well, Legend of Korra is all that and a bag of chips. This release is a must have. First of all, the animation is out of sight. Two studios are accountable for Korra's arresting visuals, one in Korea, the other in Japan. The show is seamless between both art studios. Vivid colors, fluid intense fights in each episode, incredible abilities and sub abilities, the characters in the show never disappoint. And each character has amazing development. Characters from the original series are well into their golden years with several of them being the equivalent to great grandparents. So if you miss Aang, rest assured there's plenty of references to him and his colleagues. The audio is decent. Sometimes the dialogue is a little soft spoken, and I'm not a fan of the show's opening music (it's really high at the end), but it's 5.1. I throw on subs sometimes just to make sure I don't miss a well-timed joke or plot detail. Now the crux of this series; amazing storytelling! First season is flying on all cylinders with an underground group seeking to wipe out the Bending Arts through taboo "Bloodbending". Season two is universally regarded as the weakest with a cataclysmic finale (headache mode) with super beings and sky beams. Season three gets back into a better story line with another group seeking to overthrow the kingdoms to create a Thoreau style of government rid of hierarchies and leaving government to an anarchic society. And finally Book Four is how Korra Got Her Groove Back. I'm overly simplifying the plots, but the subplots and relationships are well developed for a series on Nickelodeon, challenging even the dynamics in a more mature drama series like Game of Thrones or Breaking Bad. Between characters, comedy, plot, action, drama, and surprises, this show never fails to leave me saying aloud, "Good God this is a great show!" I cannot give this show a high enough recommendation. If you like being surprised by animated series such as the Batman cartoon from the Nineties or Samurai Jack, this is an essential series to own. You don't even have to be a longtime Avatar fan to pick it up. Plenty of references will help get you into the franchise (yes, there's Fire Kingdom references throughout). Best gem I've picked up and I cannot wait to get the original on Blu-ray in three weeks! (Also, there's eight Blu-rays for all four seasons, they are on winged inserts in the case, and there's special features for each season. I haven't dived into the added features because the show is lengthy, even for binge watching.)