Six Fantasy TV Shows That Rewrote the Genre

Streaming and on-demand viewing have helped fantasy television become a major genre, with networks and platforms commissioning exclusive, often book-based series to stand out. The form has evolved over decades, and a handful of shows pushed the boundaries of what fantasy on TV could be.

Once Upon a Time gathered dozens of familiar fairy tales into one shared universe, setting them in a small fictitious Maine town and reworking the stories so they intersected, showing adaptations need not be limited to a single author or book. Avatar: The Last Airbender arrived on Nickelodeon with continuous storytelling, action and emotional depth, proving animated fantasy for younger viewers could also offer moral weight and a coherent, serialized plot that appealed to adults.

Buffy the Vampire Slayer popularized the modern monster-of-the-week format while pairing its supernatural plots with grounded coming-of-age themes.

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