TV Fans Reveal Best Sci-Fi Series Ever: From The Expanse to Battlestar Galactica
The science fiction genre possesses a unique power to transport viewers from their living rooms into extraordinary new realms. A truly exceptional TV show in this category can be nothing short of life-altering. Whether exploring mystical alien civilizations, navigating high-stakes intergalactic wars, or uncovering bizarre phenomena right here on Earth, sci-fi thrives where imagination knows no bounds. The television format allows audiences to journey alongside beloved characters across multiple episodes as they confront otherworldly challenges and explore futuristic landscapes brimming with technology from centuries ahead.
Metro Readers Have Their Say
We asked Metro readers which science fiction series have left an indelible mark long after the final credits rolled. While numerous shows received honorable mentions, several clear favorites emerged from the passionate responses. Facebook user Charles Barley championed the HBO drama Raised By Wolves, which follows two androids tasked with raising human children on an enigmatic alien planet. Other strong contenders included Stargate SG-1, as recommended by Garry Greenhalgh, while Daniel Hylands praised the animated series Scavenger's Reign as "the best series of recent times."
Mike Kirk lauded the Disney Plus Star Wars spin-off Andor for its remarkable depth, noting: "Mix of political drama, classic science fiction & very realistic physics which most shows just get around with some sort of crazy technology or poor writing. Almost a full season just setting up the story – it takes a certain level of patience." Chris Tierney declared Battlestar Galactica was the "correct answer," with Andy Shedden agreeing the original "blew my mind as a kid." David Goldie called Blake's 7 "great escapism," while many others nominated the classic comedy Red Dwarf.
The Expanse: A Clear Fan Favorite
By a significant margin, The Expanse captured the hearts of our readers. This six-season television phenomenon, which premiered in 2015, unfolds hundreds of years in the future within a timeline where humanity has colonized the entire solar system. Featuring standout performances from Cara Gee, Steven Strait, and Frankie Adams, the series plunges directly into action when the disappearance of a young woman brings together a cynical detective and a rogue ship's captain.
As their investigation deepens, they unravel a conspiracy that threatens the fragile peace between Earth, Mars, and the asteroid-dwelling Belters. The show has earned widespread acclaim from both fans and critics, achieving an impressive 95% score on Rotten Tomatoes. "One of the great sci-fi shows of all time," wrote Dan D, echoing the sentiments of many viewers. The series is available for purchase on Apple TV Plus, with seasons four through six also streaming on Prime Video.
Andor: A Star Wars Masterpiece
The expanding universe of Star Wars spin-offs has generated mixed reactions, but Disney+'s Andor has simultaneously shocked and delighted audiences. Starring Diego Luna as thief-turned-spy Cassian Andor, the series chronicles his transformation into a rebel leader. Hailed as "phenomenal," "a masterpiece," and even "one of the greatest Star Wars projects ever made," the show delivers a powerful two-season narrative arc that balances emotional depth with edge-of-your-seat tension.
Remarkably accessible, Andor stands as a compelling entry point for viewers unfamiliar with Star Wars lore. Reflecting on the series, Diego Luna shared: "I'm really proud of what we've done. I'm very happy I've made this family this connection, and that's the way to end things when you'd still like to come back." The complete series is available for streaming exclusively on Disney Plus.
Battlestar Galactica (2004): A Space Opera Classic
This recommendation encompasses both the original 1978 series and its acclaimed 2004 reboot, though the latter receives particular focus. The four-season reimagining follows humanity's last fleet as they battle the deadly Cylons in a desperate fight for survival while searching for the mythical planet Earth. This space opera has accumulated glowing reviews over the years, maintaining a 95% score on Rotten Tomatoes.
"One of the best shows of all time- in any genre or time period. I can't keep track of how many times I have watched it since it began almost 20 years ago. An absolute must-see," shared enthusiastic fan AW M. Another viewer noted: "It really is an amazing show, not afraid to shake things up, and show quiet moments as well. And the visuals were spectacular even from the get-go." Battlestar Galactica is currently available to stream on ITVX.
Classic Gems: Red Dwarf and Blake's 7
For those seeking lighter fare, Red Dwarf offers a 13-season space odyssey that began in 1988. This beloved sitcom provides a perfect break from intense sci-fi dramas, following the last human alive—a total idiot—and his dysfunctional crew under the guidance of a senile computer. Described by one Rotten Tomatoes user as "awkward, unpolished, cheap.. and totally awesome," the series represents great British comedy blended with inventive sci-fi concepts. All thirteen seasons are available to stream for free on BBC iPlayer.
If Red Dwarf sparks interest in classic television, the 1978 series Blake's 7 serves as an essential follow-up. Described as a "sweeping 70s sci-fi epic that broke the mould with its gripping adventure tales," the story follows a band of rebels waging war against a ruthless regime that rules Earth. Its timeless themes of fascism and corruption have made it a must-watch for British sci-fi enthusiasts for decades. The Guardian noted in a retrospective review: "While there remain elements that date it to the time it was made and the budget it was made on, Blake's 7 stands out among British television science fiction and fantasy shows." All four seasons are available on ITVX Premium.
The Human Element in Sci-Fi Storytelling
Beyond these specific recommendations, readers emphasized how the best science fiction series balance spectacular concepts with profound human drama. From The Expanse's political intricacies to Battlestar Galactica's survival narrative, these shows demonstrate that the genre's greatest strength lies in its ability to explore universal themes through extraordinary circumstances. Whether through gritty realism or imaginative escapism, these television series continue to captivate audiences and define what makes science fiction storytelling so enduringly powerful.
