Westworld Episode 14 (season 2, episode 4), debut 5/13/18: Jeffrey Wright. photo: John P. Johnson/HBO; THE X-FILES: L-R: Guest star William B. Davis, David Duchovny, Gillian Anderson and Mitch Pileggi in THE X-FILES premiering Wednesday, Jan. 3 (8:00-9:00 PM ET/PT) on FOX. ©2017 Fox Broadcasting Co. Cr: Frank Ockenfels/FOX; Jamie Bamber, Katee Sackhoff, James Callis of Battlestar Galactica - SyFy; Stranger Things season 1, Millie Bobby Brown as Eleven (Netflix)
(Photo by John P. Johnson/HBO; Frank Ockenfels/FOX; SyFy; Netflix)

Best Sci-Fi Series
100-81 | 80-61 | 60-41 | 40-21 | 20-1

Caprica (0)
81%

#40
Synopsis: A prequel series to the reimagined "Battlestar Galactica" series focused on artificial intelligence, corporate responsibility and the rivalry between the... [More]

Synopsis: Returning from space, astronaut Victor Caroon crash lands his rocket back on Earth. No one knows what happened to... [More]

Colony (2016)
91%

#38
Synopsis: A family finds itself torn between appeasement and revolution when aliens settle in Los Angeles.... [More]

Stargate SG-1 (1997)

#37
Synopsis: A military unit uses an ancient archway to travel the universe and battle alien parasites in this cult sci-fi adventure... [More]

Synopsis: At the end of "Terminator 2: Judgment Day," Sarah Connor vanquished the Terminator sent from the future to kill her... [More]

Eureka (2006)
77%

#35
Synopsis: Geniuses inhabit a top-secret town, creating innovations and sometimes perilous situations in this quirky sci-fi series.... [More]

Star Trek: Voyager (1995)
77%

#34
Synopsis: A starship is stranded in the uncharted Delta Quadrant in this fourth 'Star Trek' series, the first to feature a... [More]

Synopsis: An alternate version of life in the U.S. in the 1960s -- if Nazi Germany and Japan had won WWII.... [More]

Sense8 (2015)
84%

#32
Synopsis: Eight twentysomethings around the world discover they have an intimate connection to one another with emotional, mental and physical implications.... [More]

Blake's 7 (1978)

#31
Synopsis: Freedom-fighting rebels battle an evil intergalactic government known as the Federation in this character-driven British cult hit, which aired on... [More]

The Rain (2018)
85%

#30
Synopsis: The world as we know it has ended. Six years after a brutal virus carried by the rain wiped out... [More]

Max Headroom (0)
92%

#29
Synopsis: Innovative cult fave about a reporter and his computer-generated alter ego in a futuristic society in which TV sets can't... [More]

Synopsis: In this reboot of the cult classic, a human and two robots poke fun at cheesy sci-fi movies.... [More]

#27
Synopsis: The series follows the voyages of Starfleet on their missions to discover new worlds and new life forms, and one... [More]

Farscape (1999)
100%

#26
Synopsis: Cult favorite about an astronaut stranded light years from Earth in an alien war zone and his adventures with a... [More]

Rick and Morty (2013)
97%

#25
Synopsis: Mad scientist Rick Sanchez moves in with his daughter's family after disappearing for 20 years and involves them in his... [More]

Synopsis: Different races try to coexist peacefully in the third `Star Trek' spin-off. This one takes place on a 24th-century space... [More]

The 100 (2014)
90%

#23
Synopsis: Juvenile prisoners from a space-station society are exiled to Earth decades after the planet was destroyed by nuclear war.... [More]

Torchwood (2007)
93%

#22
Synopsis: A top-secret team of investigators use scavenged alien technology to solve crimes---both human and alien---in this sci-fi adventure series from... [More]

The Prisoner (1967)
100%

#21
Synopsis: An imaginative, mesmerizing---and enigmatic---British cult series about a character known only as Number 6 (series creator Patrick McGoohan) who, after... [More]

Best Sci-Fi Series
100-81 | 80-61 | 60-41 | 40-21 | 20-1

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