40 Best Science Fiction TV Shows of All Time

From superhero shows and space operas to creepy anthology series, the greatest small-screen sci-fi of all time

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38. 'Red Dwarf' (1988-Present)

For a certain generation of nerd, this comedy lived up to the promise of its title — a deep, dense, radiant cult classic that sucked its diehard fans into its gravitational maw and never let go. Combining the BBC's charmingly ramshackle, distinctly non-Hollywood sci-fi style with a Britcom set-up about antagonistic coworkers stranded together in deep space, it's been revived multiple times to international acclaim; new seasons are due later this year. STC

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