Sticking the landing is hard for any genre of television, but few struggle with finales quite like sci-fi TV shows . Even putting aside early cancellations that left bitter tastes in fans’ mouths, many sci-fi series reached natural conclusions that somehow still disappointed. For all their ambition and creativity, these shows often stumbled at the very last hurdle.

The issue isn’t confined to the obscure or under-watched corners of the genre either. Some of the boldest, most beloved, and most influential sci-fi TV shows of all time ended with conclusions that just didn’t measure up to what came before. From classics that defined the small-screen landscape to modern streaming-era juggernauts, few have escaped the bad ending curse.

Whether it’s a show that failed to stick the emotion

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