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The following 10 sci-fi TV shows are among the best of all time, and fans of the genre need to stream them.
1) The Twilight Zone

The Twilight Zone aired more than 50 years ago, but its appeal remains timeless. Boasting an intriguing mix of sci-fi and horror, the anthology series centers each episode on mysterious supernatural or extraterrestrial events. The Twilight Zone is regarded as an all-time TV classic for a reason, as the show tells plenty of creepy and unnerving stories dealing with aliens, monsters, and other strange happenings. Each installment develops its characters in memorable ways and delivers narrative twists viewers won’t see coming. Those who haven’t gotten the chance to delve into The Twilight Zone‘s rich world need to start watching the show, and luckily it’s currently available to stream for free on Pluto TV.
2) Westworld

Westworld Season 1 captivated TV audiences with its mystery-filled Wild West theme park and intriguing array of characters — humans and android hosts alike. The series begins by exploring the hosts’ interactions with affluent guests and soon spirals into a riveting chain of events involving the dystopian real world. Elevated by outstanding acting performances and an imposing musical score, Westworld demands to be binged by all fans of science fiction. Westworld‘s plot grows a bit too convoluted after Season 1, but its first batch of episodes is still a remarkable work of sci-fi.
Westworld is only available to purchase through video on demand services like Apple TV and Prime Video.
3) The Expanse

TV fans on the hunt for top-notch character arcs and political themes should look no further than The Expanse. A gripping space opera set hundreds of years in the future, The Expanse fixates on a Solar System colonized by humans and divided into the factions of Earth, Mars, and the Asteroid Belt. Conflict breaks out amid the emergence of a world-altering supernatural threat, and the misfit crew of an independent spaceship must navigate its pivotal role in it all. From start to finish, The Expanse surprises, thrills, and moves audiences. An excellent cast and a number of smart changes to its source material cement The Expanse as one of the greatest sci-fi shows ever. The Expanse is streaming on Prime Video.
4) Humans

Humans examines artificial intelligence through an engaging narrative focused on humanoid robots known as synths. Created to serve humans, the hyper-intelligent sentient robots struggle to navigate a world in which they are relegated to second-class citizens despite being virtually indistinguishable from humans. The series includes a variety of interesting characters and a plot that will keep viewers glued to the screen. Humans was sadly cancelled after its third season, but the show is still well worth a watch, and is available to stream on Prime Video and for free on Tubi, Pluto TV, and The Roku Channel.
5) Severance

Severances starts off slow, but its uncanny, yet fascinating, story is one worth paying attention to. In the series, a process known as Severance enables people to separate their work memories and consciousness from their home life. As one might expect, this comes with a unique set of drawbacks, and the severed employees of Lumon Industries progressively learn more about what’s been done to them and who they really work for. Saturated with tantalizing mystery and drama, Severance is heightened by its first-rate cast and complex characters. The show is streaming on Apple TV+.













