If you lack a Blu‑ray player, the 2015‑2018 DVD reprints are acceptable:
What unfolds across 61 episodes (three "Books": Water, Earth, and Fire) is a masterclass in serialized storytelling. The series tackles genocide, imperialism, disability, mental health, trauma, and redemption arcs that put most live-action dramas to shame. Prince Zuko’s journey from villain to hero is widely regarded as one of the greatest character arcs in the history of television, animated or otherwise.