The Best Science Movies and TV Shows on Free Services

What it's about: In the post-apocalyptic future, reigning tyrannical supercomputers teleport a cyborg assassin known as the "Terminator" back to 1984 to kill Sarah Connor, whose unborn son is destined to lead insurgents against 21st century mechanical hegemony. Meanwhile, the human-resistance movement dispatches a lone warrior to safeguard Sarah. Can he stop the virtually indestructible killing machine?

Where to Watch: Available to watch free online (Tubi TV & Vudu), stream on a popular subscription service (Netflix & Tribeca Short List) & rent or buy from $2.99 on 8 services (iTunes, Google Play, Prime Video & 6 others).

What it's about: Rick is a mentally-unbalanced but scientifically-gifted old man who has recently reconnected with his family. He spends most of his time involving his young grandson Morty in dangerous, outlandish adventures throughout space and alternate universes. Compounded with Morty's already unstable family life, these events cause Morty much distress at home and school.

Where to Watch: 6 episodes (19%) are available to watch free online (Adult Swim). 31 episodes (100%) are available to stream on a popular subscription service (Hulu). 5 episodes (16%) are available to stream on a TV everywhere service (Adult Swim). 31 episodes (100%) are available to rent or buy from $1.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress and aspiring actress who lives across the hall; and Leonard and Sheldon's equally geeky and socially awkward friends and co-workers, mechanical engineer Howard Wolowitz and astrophysicist Raj Koothrappali. The geekiness and intellect of the four guys is contrasted for comic effect with Penny's social skills and common sense.

Where to Watch: 3 episodes (1%) are available to watch free online (CBS). 22 episodes (8%) are available to stream on a subscription service (CBS All Access). 15 episodes (5%) are available to stream on a popular TV everywhere service (TBS). 280 episodes (100%) are available to rent or buy from $1.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: A secret military project endangers Neo-Tokyo when it turns a biker gang member into a rampaging psychic psychopath that only two teenagers and a group of psychics can stop.

Where to Watch: Available to watch free online (Tubi TV & Yahoo View), stream on a popular subscription service (Hulu) & rent or buy from $2.99 on 3 services (Vudu, PlayStation Store & FandangoNOW).

What it's about: In a futuristic city sharply divided between the working class and the city planners, the son of the city's mastermind falls in love with a working class prophet who predicts the coming of a savior to mediate their differences.

Where to Watch: Available to watch free online (Tubi TV), stream on a subscription service (Fandor) & rent or buy from $2.99 on 4 services (iTunes, Google Play & 2 others).

What it's about: Science fiction drama about a future society in the era of indefinite eugenics where humans are set on a life course depending on their DNA. The young Vincent Freeman is born with a condition that would prevent him from space travel, yet he is determined to infiltrate the GATTACA space program.

Where to Watch: Available to watch free online (Sony Crackle) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: Admiral James T. Kirk is feeling old; the prospect of accompanying his old ship the Enterprise on a two week cadet cruise is not making him feel any younger. But the training cruise becomes a life or death struggle when Khan escapes from years of exile and captures the power of creation itself.

Where to Watch: Available to watch free online (PopcornFlix & Tubi TV), stream on a popular subscription service (Prime Video & CBS All Access), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 9 services (iTunes, Google Play & 7 others).

What it's about: UK Comedy series about two I.T. nerds and their clueless female manager, who work in the basement of a very successful company. When they are called on for help, they are never treated with any respect at all.

Where to Watch: 25 episodes (100%) are available to watch free online (Tubi TV). 25 episodes (100%) are available to stream on a popular subscription service (Netflix). 25 episodes (100%) are available to rent or buy from $1.99 on 4 services (iTunes, Google Play & 2 others).

What it's about: Dr. Malcolm Sayer, a shy research physician, uses an experimental drug to "awaken" the catatonic victims of a rare disease. Leonard is the first patient to receive the controversial treatment. His awakening, filled with awe and enthusiasm, proves a rebirth for Sayer too, as the exuberant patient reveals life's simple but unutterably sweet pleasures to the introverted doctor.

Where to Watch: Available to watch free online (Sony Crackle) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: A man struggles with memories of his past, including a wife he cannot remember, in a nightmarish world with no sun and run by beings with telekinetic powers who seek the souls of humans.

Where to Watch: Available to watch free online (Vudu) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena. Mulder believes in the existence of aliens and the paranormal while Scully, a skeptic, is assigned to make scientific analyses of Mulder's discoveries that debunk Mulder's work and thus return him to mainstream cases.

Where to Watch: 5 episodes (2%) are available to watch free online (FOX & Yahoo View). 219 episodes (100%) are available to stream on a popular subscription service (Prime Video & Hulu). 208 episodes (95%) are available to stream on a TV everywhere service (BBC America & FOX). 219 episodes (100%) are available to rent or buy from $1.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: David, a robotic boy—the first of his kind programmed to love—is adopted as a test case by a Cybertronics employee and his wife. Though he gradually becomes their child, a series of unexpected circumstances make this life impossible for David. Without final acceptance by humans or machines, David embarks on a journey to discover where he truly belongs, uncovering a world in which the line between robot and machine is both vast and profoundly thin.

Where to Watch: Available to watch free online (Vudu), stream on a popular subscription service (Prime Video), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: A very handsome man finds the love of his life, but he suffers an accident and needs to have his face rebuilt by surgery after it is severely disfigured.

Where to Watch: Available to watch free online (Tubi TV), stream on a subscription service (Tribeca Short List) & rent or buy from $1.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: Morgan Spurlock subjects himself to a diet based only on McDonald's fast food three times a day for thirty days without exercising to try to prove why so many Americans are fat or obese. He submits himself to a complete check-up by three doctors, comparing his weight along the way, resulting in a scary conclusion.

Where to Watch: Available to watch free online (Tubi TV), stream on a popular subscription service (Prime Video) & rent or buy from $1.99 on 5 services (iTunes, Google Play & 3 others).

What it's about: A man accidentally gets into a time machine and travels back in time nearly an hour. Finding himself will be the first of a series of disasters of unforeseeable consequences.

Where to Watch: Available to watch free online (Tubi TV), stream on a popular subscription service (Hulu, Monsters Nightmares & Shudder) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: A cameraman wanders around Moscow, Kharkov, Kiev and Odessa with a camera slung over his shoulder, documenting urban life with dazzling invention.

Where to Watch: Available to watch free online (Vudu) & rent or buy from $2.99 on 3 services (iTunes, Prime Video & Vudu).

What it's about: Aurora and her daughter, Emma march to the beat of different drums. Beginning with Emma's marriage, Aurora shows how difficult and loving she can be.

Where to Watch: Available to watch free online (PopcornFlix), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: A delightful dramatic comedy, a buddy picture, and, for good measure, a heist film. Curmudgeonly old Frank lives by himself. His routine involves daily visits to his local library, where he has a twinkle in his eye for the librarian. His grown children are concerned about their father’s well-being and buy him a caretaker robot. Initially resistant to the idea, Frank soon appreciates the benefits of robotic support – like nutritious meals and a clean house – and eventually begins to treat his robot like a true companion. With his robot’s assistance, Frank’s passion for his old, unlawful profession is reignited, for better or worse.

Where to Watch: Available to watch free online (Tubi TV & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: Archival material from the original NASA film footage – much of it seen for the first time – plus interviews with the surviving astronauts, including Jim Lovell, Dave Scott, John Young, Gene Cernan, Mike Collins, Buzz Aldrin, Alan Bean, Edgar Mitchell, Charlie Duke and Harrison Schmitt.

Where to Watch: Available to watch free online (Tubi TV), stream on a popular subscription service (Prime Video & Spacerip) & rent or buy from $1.99 on 1 service (Prime Video).

What it's about: Hank and Dean Venture, with their father Doctor Venture and faithful bodyguard Brock Samson, go on wild adventures facing megalomaniacs, zombies, and suspicious ninjas, all for the glory of adventure. Or something like that.

Where to Watch: 17 episodes (20%) are available to watch free online (Adult Swim). 71 episodes (86%) are available to stream on a popular subscription service (Hulu). 17 episodes (20%) are available to stream on a TV everywhere service (Adult Swim). 83 episodes (100%) are available to rent or buy from $1.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: A dramatic thriller based on the incredible true David vs. Goliath story of American immigrant Dr. Bennet Omalu, the brilliant forensic neuropathologist who made the first discovery of CTE, a football-related brain trauma, in a pro player and fought for the truth to be known. Omalu's emotional quest puts him at dangerous odds with one of the most powerful institutions in the world.

Where to Watch: Available to watch free online (Sony Crackle) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: When Juli meets Bryce in the second grade, she knows it's true love. After spending six years trying to convince Bryce the same, she's ready to give up - until he starts to reconsider.

Where to Watch: Available to watch free online (Vudu) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: While doing a series of reports on alternative energy sources, opportunistic reporter Kimberly Wells witnesses an accident at a nuclear power plant. Wells is determined to publicize the incident, but soon finds herself entangled in a sinister conspiracy to keep the full impact of the incident a secret.

Where to Watch: Available to watch free online (Sony Crackle) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: A suburban couple's ordinary lives are rocked by the sudden discovery that their children possess mutant powers. Forced to go on the run from a hostile government, the family joins up with an underground network of mutants and must fight to survive.

Where to Watch: 10 episodes (34%) are available to watch free online (FOX & Yahoo View). 29 episodes (100%) are available to stream on a popular subscription service (Hulu). 21 episodes (72%) are available to stream on a TV everywhere service (FOX). 28 episodes (97%) are available to rent or buy from $1.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: Edward and Alphonse Elric's reckless disregard for alchemy's fun­damental laws ripped half of Ed's limbs from his body and left Al's soul clinging to a cold suit of armor. To restore what was lost, the brothers scour a war-torn land for the Philosopher's Sto­ne, a fabled relic which grants the ability to perform alchemy in impossible ways.The Elrics are not alone in their search; the corrupt State Military is also eager to harness the artifact's power. So too are the strange Homunculi and their shadowy creator. The mythical gem lures exotic alchemists from distant kingdoms, scarring some deeply enough to inspire murder. As the Elrics find their course altered by these enemies and allies, their purpose remains unchanged – and their bond unbreakable.

Where to Watch: 64 episodes (94%) are available to watch free online (Crunchyroll). 64 episodes (94%) are available to stream on a popular subscription service (Netflix & Hulu). 4 episodes (6%) are available to rent or buy from $1.99 on 1 service (Prime Video).

What it's about: A stranded spaceship pilot captured by mad scientists survives a blitz of cheesy B movies by riffing on them with his funny robot pals.

Where to Watch: 82 episodes (42%) are available to watch free online (Tubi TV & Yahoo View). 71 episodes (36%) are available to stream on a popular subscription service (Netflix & Hulu). 14 episodes (7%) are available to rent or buy from $2.99 on 2 services (iTunes & Vudu).

What it's about: Drawing from never-before-seen footage that has been tucked away in the National Geographic archives, director Brett Morgen tells the story of Jane Goodall, a woman whose chimpanzee research revolutionized our understanding of the natural world.

Where to Watch: Available to watch free online (NatGeo), stream on a popular subscription service (Hulu) & rent or buy from $3.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: A research scientist explores the boundaries and frontiers of consciousness. Using sensory deprivation and hallucinogenic mixtures from native American shamans, he explores these altered states of consciousness and finds that memory, time, and perhaps reality itself are states of mind.

Where to Watch: Available to watch free online (Vudu) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: A scientific expedition searching for fossils along the Amazon River discover a prehistoric Gill-Man in the legendary Black Lagoon. The explorers capture the mysterious creature, but it breaks free. The Gill-Man returns to kidnap the lovely Kay, fiancée of one of the expedition, with whom it has fallen in love.

Where to Watch: Available to watch free online (PopcornFlix) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: The mad and evil scientist, Dr. Clayton Forrester, has created an evil little scheme that is bound to give him world global domination but first things first. He plans to torment Mike Nelson and the robots by sending them a real stinker of a film to watch called, "This Island Earth." He is convinced that this movie will drive them insane. Will this be the ultimate cheese that breaks the boys' spirits?

Where to Watch: Available to watch free online (Tubi TV) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: An impromptu goodbye party for Professor John Oldman becomes a mysterious interrogation after the retiring scholar reveals to his colleagues he never ages and has walked the earth for 14,000 years.

Where to Watch: Available to watch free online (Tubi TV), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

What it's about: A military veteran goes on a journey into the future, where he can foresee his death and is left with questions that could save his life and those he loves.

Where to Watch: Available to watch free online (Vudu) & rent or buy from $1.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: After a lightning bolt zaps a robot named Number 5, the lovable machine starts to think he's human and escapes the lab. Hot on his trail is his designer, Newton, who hopes to get to Number 5 before the military does. In the meantime, a spunky animal lover mistakes the robot for an alien and takes him in, teaching her new guest about life on Earth.

Where to Watch: Available to watch free online (Sony Crackle) & rent or buy from $7.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: A group of librarians set off on adventures in an effort to save mysterious, ancient artifacts. Based on the series of "The Librarian" movies.

Where to Watch: 1 episodes (2%) are available to watch free online (Tubi TV & Yahoo View). 42 episodes (95%) are available to stream on a popular subscription service (Hulu). 44 episodes (100%) are available to rent or buy from $1.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: Psychological horror about a lonely young woman traumatized by a difficult childhood, and her increasingly desperate attempts to connect with the people around her.

Where to Watch: Available to watch free online (PopcornFlix, Tubi TV & Vudu), stream on a subscription service (ComicCon HQ & Tribeca Short List) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: One man's journey to discover the bitter truth about sugar. Damon Gameau embarks on a unique experiment to document the effects of a high sugar diet on a healthy body, consuming only foods that are commonly perceived as 'healthy'. Through this entertaining and informative journey, Damon highlights some of the issues that plague the sugar industry, and where sugar lurks on supermarket shelves.

Where to Watch: Available to watch free online (Tubi TV & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: A group of scientists have developed the Resonator, a machine which allows whoever is within range to see beyond normal perceptible reality. But when the experiment succeeds, they are immediately attacked by terrible life forms.

Where to Watch: Available to watch free online (Tubi TV & Vudu) & rent or buy from $2.99 on 2 services (Prime Video & Vudu).

What it's about: Based on a true story. Shortly after World War II, Preston Tucker is a dynamic engineer and an enthusiastic showman who envisions the car of the future. Against mighty odds he manages to build a fleet of them - only to have his factory shut down by Detroit's Big Three automobile manufacturers. They took away his car - but nobody could take away his dream.

Where to Watch: Available to watch free online (Vudu) & rent or buy from $2.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: Having escaped years of imprisonment, vampire warrioress Selene finds herself in a changed world where humans have discovered the existence of both Vampire and Lycan clans and are conducting an all-out war to eradicate both immortal species. Now Selene must battle the humans and a frightening new breed of super Lycans to ensure the death dealers' survival.

Where to Watch: Available to watch free online (Sony Crackle) & rent or buy from $2.99 on 8 services (iTunes, Google Play & 6 others).

What it's about: Amiable slackers Bill and Ted are once again roped into a fantastical adventure when De Nomolos, a villain from the future, sends evil robot duplicates of the two lads to terminate and replace them. The robot doubles actually succeed in killing Bill and Ted, but the two are determined to escape the afterlife, challenging the Grim Reaper to a series of games in order to return to the land of the living.

Where to Watch: Available to watch free online (Tubi TV & Vudu), stream on a popular subscription service (Prime Video), stream on a popular TV everywhere service (Epix) & rent or buy from $2.99 on 7 services (iTunes, Google Play & 5 others).

What it's about: In a beauty salon in Beirut the lives of five women cross paths. The beauty salon is a colorful and sensual microcosm where they share and entrust their hopes, fears and expectations.

Where to Watch: Available to watch free online (Tubi TV), stream on a subscription service (Mubi) & rent or buy from $3.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: When Harvard philosophy scholar Jack Griffin finds himself teaching high school in Toledo, Ohio, he tosses the syllabus and recruits his students to help enact revenge on his rival.

Where to Watch: 17 episodes (77%) are available to watch free online (NBC & Yahoo View). 20 episodes (91%) are available to stream on a popular subscription service (Hulu). 3 episodes (14%) are available to stream on a TV everywhere service (NBC). 20 episodes (91%) are available to rent or buy from $1.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: A chronicle of the true top secret U.S. Air Force-sponsored investigations into UFO-related phenomena in the 1950s and ’60s, known as “Project Blue Book.”

Where to Watch: 1 episodes (10%) are available to watch free online (YouTube). 10 episodes (100%) are available to stream on a TV everywhere service (History). 10 episodes (100%) are available to rent or buy from $1.99 on 2 services (Vudu & Verizon).

What it's about: MacGyver is an American action-adventure television series created by Lee David Zlotoff. Henry Winkler and John Rich were the executive producers. The show ran for seven seasons on ABC in the United States and various other networks abroad from 1985 to 1992. The series was filmed in Los Angeles during seasons 1, 2 and 7, and in Vancouver during seasons 3–6. The show's final episode aired on April 25, 1992, on ABC. Episode ListThe show follows secret agent Angus MacGyver, played by Richard Dean Anderson, who works as a troubleshooter for the fictional Phoenix Foundation in Los Angeles and as an agent for a fictional United States government agency, the Department of External Services. Educated as a scientist, MacGyer served as a Bomb Team Technician/EOD during the Vietnam War. Resourceful and possessed of an encyclopedic knowledge of the physical sciences, he solves complex problems with everyday materials he finds at hand, along with his ever-present duct tape and Swiss Army knife. He prefers non-violent resolutions and prefers not to handle a gun, but will if necessary.

Where to Watch: 10 episodes (7%) are available to watch free online (CBS). 139 episodes (100%) are available to stream on a popular subscription service (Prime Video & CBS All Access). 139 episodes (100%) are available to rent or buy from $1.99 on 6 services (iTunes, Google Play & 4 others).

What it's about: A 12-year old boy named Naota one day meets a strange woman, riding a Vespa and wielding a big guitar. As soon as she appears, mysterious things start happening.

Where to Watch: 16 episodes (84%) are available to watch free online (Adult Swim & Yahoo View). 6 episodes (32%) are available to stream on a popular subscription service (Hulu). 2 episodes (11%) are available to stream on a TV everywhere service (Adult Swim). 6 episodes (32%) are available to rent or buy from $1.99 on 3 services (iTunes, Google Play & Prime Video).

What it's about: In order to protect the reputation of the American space program, a team of scientists stages a phony Mars landing. Willingly participating in the deception are a trio of well-meaning astronauts, who become liabilities when their space capsule is reported lost on re-entry. Now, with the help of a crusading reporter, they must battle a sinister conspiracy that will stop at nothing to keep the truth.

Where to Watch: Available to watch free online (Tubi TV), stream on a popular subscription service (Prime Video & Shout Factory TV) & rent or buy from $2.99 on 5 services (iTunes, Google Play & 3 others).

What it's about: In this reimagining of the 2010 Mexican film of the same name, director Jim Mickle paints a gruesome portrait of an introverted family struggling to keep their macabre traditions alive, giving us something we can really sink our teeth into.

Where to Watch: Available to watch free online (Tubi TV & Vudu), stream on a popular subscription service (Prime Video) & rent or buy from $1.99 on 7 services (iTunes, Google Play & 5 others).