The 19 best sci-fi shows of all time, according to fans

Abby MonteilMay 20, 2020, 01:55 IST

David Duchovny and Gillian Anderson costar on "The X-Files."Fox Broadcasting Company

There are thousands of movies on Netflix, and finding the right one to watch can be difficult.
That's why Insider has compiled guides for every type of TV show (and movie) you might feel like streaming.
Here, we've listed the best sci-fi shows to watch, according to fans.
Keep reading to see our list of titles, which includes "Black Mirror," "Star Trek," "The X-Files," and more.

Sometimes, it's nice to escape the day-to-day and get immersed in the futuristic worlds of science fiction. But what TV shows do sci-fi fans consider to be the greatest in the genre?

To compile this list, Insider scoured a few different Reddit threads, including "In your opinion, what are the greatest Sci Fi TV shows ever?," "What is your top 5 best sci fi shows?," and "Sci-fi TV series recommendations?." If the same show kept popping up again and again in the comments, we included it on this list.

The results included several different titles, such as "The Expanse" and "Battlestar Galactica."

Here are the 19 best sci-fi TV shows of all time, according to fans.

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"Babylon 5" is a space opera following the personal and politica drama that unfolds on a space station.

"Babylon 5" aired for five seasons. TNT

On the cult classic "Battlestar Galactica," what's left of humankind fight for survival and look for Earth.

"Battlestar Galactica" ran for four seasons. NBC Universal

"Black Mirror" tackles how people's lives are affected by constantly evolving technology.

Letitia Wright stars on an episode of "Black Mirror." Zeppotron

"Cowboy Bebop" is an anime classic about a crew of bounty hunters.

"Cowboy Bebop" aired for one season. Bandai

"Dark" takes place in a small German town, where two children's disappearances reveal a supernatural secret.

"Dark" is a German Netflix original series. Julia Terjung/Netflix

"The Expanse" takes place far into the future, after humans have colonized the larger universe.

"The Expanse" began as a SyFy show, but now airs on Amazon Prime. Syfy

"Farscape" sees an American astronaut team up with a band of intergalactic rebels.

"Farscape" aired for four seasons in the early 2000s. SyFy

"Firefly" is a short-lived but beloved sci-fi western from "Buffy the Vampire Slayer" creator Joss Whedon.

Alan Tudyk, Nathan Fillion, and Gina Torres costar on "Firefly." Fox

On "Fringe," an FBI agent is assigned to a division that investigates unusual crimes, and discovers a parallel universe.

Anna Torv leads the ensemble cast of "Fringe." Fox Broadcating Company

The long-running animated sitcom "Futarama" revolves around a pizza delivery boy who is accidentally transported far into the future.

"Futarama" aired for 10 seasons. SyFy

On "Orphan Black," Tatiana Maslany plays several women who discover that they're clones.

Tatiana Maslany plays multiple roles on "Orphan Black." BBC AMERICA

"Killjoys" centers on three intergalactic bounty hunters.

Aaron Ashmore, Hannah John-Kamen, and Luke Macfarlane star in "Killjoys." Syfy

The original "Star Trek" series follows the crew of the spaceship USS Enterprise, as they complete missions across the universe.

The original "Star Trek" ran from 1966 to 1969.

"Star Trek: The Next Generation" introduced the "Star Trek" franchise to a new generation.

"Star Trek: The Next Generation" aired from 1987 to 1994. CBS

The explorers at the heart of "Stargate SG-1" use an ancient portal to travel to new planets.

"Stargate SG-1" is based on the 1994 film "Stargate." Double Secret Productions

"Stargate: Atlantis" is a spinoff of "Stargate SG-1," and centers on a team who enter a distant galaxy to find the titular lost city.

"Stargate Atlantis" aired from 2004 to 2009. YouTube/SciFi

"The Twilight Zone" is a quintessential American anthology series that blends horror and sci-fi.

Rod Serling created "The Twilight Zone." CBS

On "The X-Files," a skeptic and a believer work to solve unexplained, often paranormal FBI cases.

"The X-Files" ran for 11 seasons. Fox Broadcasting Company

"Westworld" was inspired by Michael Crichton's 1973 film of the same name, and takes place in a futuristic theme park populated by robotic "hosts."

Thandie Newton plays Maeve on "Westworld." HBO

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