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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37. 'Thunderbirds' (1965-1966)

A peerless example of the innovative, creative spirit of the genre infecting its production as well, this beloved British children's series used an elaborate puppeteering process called "Supermarionation" to give the jet-setting heroes of International Rescue its distinctive look. (Matt Stone and Trey Parker dug it so much they lifted it wholesale for their War on Terror satire Team America: World Police.) Generations of kids on both sides of the pond have thrilled to those magic words: "5, 4, 3, 2, 1: Thunderbirds are go!" STC

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