Top 10 Best Sci-Fi TV Shows of All Time

The Top Ten
1 The X-Files The X-Files is an American science fiction drama television series created by Chris Carter. The original television series aired from September 10, 1993, to May 19, 2002, on Fox.

Best series ever. Brilliant characters and amazing storytelling. As for those who think Doctor who is better just because it's Been around for over 50 years, that does not mean it's a great show. Let me tell you that having watched every episode of dr who including the stills, most seasons are pretty dull. The x files was brilliant throughout its entire series and had two excellent films whereas the Dr who movie was a flop.

The X-Files is the best show ever! Kim Manners started on this show, and then Supernatural. Then it inspired a Supernatural episode. This show has open the barriers for shows of this nature and is still mentioned or copied off of. And not just Sci-Fi things either...

Come on, This is not the best sci-fi T.V. show, the best one is Doctor Who, anyone who loves The X-Files hasn't seen one episode of Doctor Who, Doctor Who has changed the way we think of Science Fiction and Television, it will always be better than this show.

The X-Files is not the best, that would be Doctor Who, Doctor Who has the best plot, and it's been running for more than 50 years, it's the longest running sci-fi T.V. show, and nothing will ever replace it, The X-Files is just a second place sci-fi show.

2 Doctor Who Doctor Who is a British science-fiction television programme produced by the BBC since 1963. The programme depicts the adventures of a Time Lord called "the Doctor", an extraterrestrial being from the planet Gallifrey. The Doctor explores the universe in a time-travelling space ship called the TARDIS. Accompanied by a number of companions, the Doctor combats a variety of foes, while working to save civilisations and help people in need.

Trust me when I tell you this, Doctor Who is the best show I have ever seen. Yes, I have finished Breaking Bad, The X Files (seen season 10), seen Game of Thrones, Supernatural, and the Office, but nothing even comes close to Doctor Who. It's charming, funny, emotional, and just an awesome series. Go watch Heaven Sent, Silence in the Library/Forest of the Dead, or Listen and try to tell me they're not masterpieces of storytelling. While not as much hard sci fi as the X files, most of the best stories like the ones I listed above employ many sci fi elements. Aside from the best episodes, it's an awesome ride from start to finish. It might have cheesy moments every once in a while, but that just makes it more charming.

10/10. Unparalleled in the television world

Doctor Who is totally fiction, but makes sense of everything, so it all seems so real! (When I first watched this I refused to sleep by myself for months! I was certain that a Cyberman would jump out of my closet at any moment! )This is a great show for kids and adults alike! I love the Tenth Doctor (David Tennant) and the Eleventh Doctor (Matt Smith) most, and I also love Rose Tyler (Billie Piper), Clara Oswald (Jenna Coleman), and Amy Pond (Karen Gillian)! Doctor...Who?

Just astoundingly good and has been pretty much consistently for 50 years. The most original T.V. show ever made, the most ambitious T.V. show ever made and by far the bets science fiction show ever made. Anyone who has watched a significant amount of it would agree with that.
There is a reason why it has the Guinness World Record for being the most successful science fiction show of all time as well as the longest running.

This is the same show as 'Doctor Who' which is up at the top and therefore should not be listed separately. It is unarguably the same show, it just underwent a hiatus. This has been confirmed by the BBC and everyone who has been involved in producing it.

3 Star Trek Star Trek is an American science-fiction television series created by Gene Roddenberry that follows the adventures of the starship USS Enterprise.

Best sci fi franchise which takes itself seriously and tries to give hope for humanity and ignite their scientific curiosity unlike the goofy abomination Dr. Who

If you don't like Star Trek, I ask you to sit down and type, then click on videos, then click on channels, and then click on Enterprise. Then, scroll down to the bottom and click on "Broken Bow Pt.1." If, somehow, you don't like it, go to The Next Generation and watch the first episode. Then, you will have been assimilated into the Star Trek collective. (That is how it worked for me!) Also, for you Doctor Who fans, go to the top 10 coolest Star Trek aliens, go to the Borg, and see how a fight between a Cyberman and a Borg would unfold.

Captain's log: stardate 2017.08 We have spotted an outrageous list with star trek in third place. I have ordered phasers to stand by and to issue red alert. Resistance is futile. Beam me up. Live long and prosper. Prepare to issue mass murder on the redshirts. star trek number 1? Make it so.

It's Star Trek. It's THE mother of all other sci-fi series... And who can say he doesn't like their mother? Just go to any Star Trek convention and feel the cult around you. Resistance is futile!

4 Battlestar Galactica Battlestar Galactica is an American science fiction media franchise created by Glen A. Larson. The franchise began with the original television series in 1978 and was followed by a short-run sequel series, a line of book adaptations, original novels, comic books, a board game, and video games.

The best sci fi show ever( obviously the latter day remake, not the original that was truely terrible)

5 Supernatural This haunting series follows the thrilling yet terrifying journeys of Sam and Dean Winchester, two brothers who face an increasingly sinister landscape as they hunt monsters. After losing their mother to a supernatural force, the brothers were raised by their father as soldiers who track mysterious and demonic creatures. Violent memories and relationship-threatening secrets add additional burdens on Sam and Dean as they investigate all things that go bump in the night. As old tricks and tools are rendered useless and friends betray them, the brothers must rely on each other as they encounter new enemies

What idiot put this show on this list? supernatural is not science fiction, there's nothing remotely scientific about it. It's a fantasy show about demons and monster and has nothing to do with the science fiction genre.

When it hits 218 episodes at the end of its 10th season (starting this October), it will be THE longest running American sci-fi series, taking out Stargate SG-1 and The X-Files. (Dr. Whoever and the BBC don't count! )

It draws you in like no other show. You feel it. And I have always watched a ton of T.V. my genre is sci fi and I think they are all great looking but that is not why I watch the show, just a bonus

The best sci-fic show ever! Jensen Ackles is incredibly talented and Supernatural wouldn't BE Supernatural without him.

6 Firefly Firefly is an American space Western drama television series which ran from 2002–2003, created by writer and director Joss Whedon, under his Mutant Enemy Productions label.

This is the best sci fi T.V. serial I have ever seen. Unfortunately it has been stopped after first season. It should be number one. People who have seen it definitely agree with me. So fan of the firefly vote for it.

This show is definitely one of my all time favourites. Such great characters and stories, you can't help but fall in love with the show. Deserved much more than 14 episodes (and a movie).

Fourteen episodes? I am missing some. Great show

Best show ever! Why did they have to stop it? :/

7 The Twilight Zone The Twilight Zone is an American anthology television series created and presented by Rod Serling, which ran for five seasons on CBS from 1959 to 1964. Each episode presents a stand-alone story in which characters find themselves dealing with often disturbing or unusual events, an experience described more.

This show was so diverse... It was so pertinent for its time and covered so many themes... Was dark, fun, suspenseful and loaded with surprise endings... My favorites were: To serve Man, Nightmare at 20,000 feet, On Thursday we Leave for Home, and Time Enough At Last...

The creator of the X-Files said that without The Twilight Zone, X-Files would never had been made. Both are worthy of the top seat.

This show was, by far, the best sci-fi show...tied for second place - The Outer Limits and Star Trek...

A classic and I love how every episode brings a fresh story.

8 Stargate SG-1

Definitely my favourite Sci fi franchise, loved SG1, just started watching it all again, Atlantis was better looking visually, both had great casts with a mix of humour and action they were and are great.

While I bought and watched "Stargate universe" it is the worst part of the franchise. They try to make a Battlestar galactica/Voyager clone, I only enjoyed a few episodes of the two seasons.

I watched every episode of this from start to finish in about a month. I couldn't stop. It would be 3 in the morning, id have to go to work a 7 and id still watch 1 more episode. I couldn't help myself. Call me sad, I call it dedication

I absolutely loved this show, even though it ended when I was 7. ' Richard Dean Anderson was amazing.

Great characters teal'c for the win and O'neill is also awesome, good humor and plot lines in the later seasons there is also epic space battles.

9 Babylon 5

This was an incredible series. The best aspects are the five year story arc, the writing, and the absolute lack of ridiculous 'relevant' plot arcs.

This was a complete, well-told story -- not a referendum on modern culture or recent history. Most Sci-Fi series rely on using political hot points to infuse their scripts with life, but this one was purely the child of J. Michael Straczynski's imagination, and it lives and breathes on the screen like nothing before or since.

The themes in this show - political and philosophical - are always relevant. Every time I watch this series, it has something to say about current events - it is just that universally relevant. Plus, unlike most sci-fi (I.e. ST) it shows a real society with classes, poverty, and homelessness. They even have to be concerned about their budget being cut (can'take shoot your way out of that, Kirk! )

If you're not voting for this show, then you haven't watched enough of it. Babylon 5's greatness lies not in the individual episodes, but in it's overall 5 year long tale. It's by far the best I've seen. I'd rate The Twilight Zone and the X-files high too, but Babylon 5 is pure SciFi fulfillment!

This series has the deepest, most intricate story line of any sci-fi ever created. every episode ended with you wondering what would happen next and this show broke the barrier for ending with everything exactly the same as when the episode started. This show is truly phenomenal and deserves to be #1

10 Farscape

One of the best sci-fi T.V. shows of all time. They took sci-fi T.V. to another level and those that followed (including a few higher on this list) and had more money to hype their show didn't have nearly the character depth and story range as Farscape.

Many excellent shows here, but I have to spread the Farscape love. It wouldn't have existed without Star Trek, but it was more fun, dark, ambitious and downright entertaining than any other sci-fi of its time.

One of the few shows to have real aliens (not just bumps on the heads), and a compelling story arc.

This show is cool, mostly looks like a drug fueld trip, but still great.

The Contenders
11 Star Trek: The Next Generation Star Trek: The Next Generation is an American science fiction television series in the Star Trek franchise created by Gene Roddenberry that ran between 1987 and 1994. Roddenberry, Maurice Hurley, Rick Berman, and Michael Piller served as executive producers at different times throughout its production. Patrick Stewart starred as Captain Jean Luc Picard.

To people talking about how Star Trek is already on here, they're different T.V. Shows, it isn't like Doctor Who. It's like saying Star Wars A New Hope is the same movie as The Empire Strikes Back.
Well anyways, TNG is the peak of Star Trek. The original may be iconic, but TNG exceeds it, although both will have a special place in my heart.

This is the standard by which all other shows are measured. Great character development, intelligent plots and a very loose timeline. There is no one else I would want to take me into battle over Captain Picard.

This is just part of the Star Trek series, which is already on the list.

This is just a Star Trek series and Star Trek is already on the list.

12 Stargate Atlantis
13 The 4400
14 Red vs Blue

An amazing thrill ride of sci-fi, drama, action, and most importantly, comedy. The characters are AMAZING. The plot can be ludicrous, but its charm and self-awareness always trump the ridiculousness of the truth for the show's benefit

It has stronger characters then most shows above.

15 Fringe

How on earth is Fringe this low. Was this list started today? A show that fans managed by force of will to keep on air for another season and half? This is unacceptable... Or the alternate universe.

Why the hell is Supernatural on the list, it's not even sci fi. Fringe deserves to be in the top 5.

32? What the heck are sea quest and sliders and how can they be ahead of Fringe. Heaven help us all.

Fringe should be in at least the top 5! Fringe was the best sci-fi series EVER!

16 Space: Above and Beyond
17 Quantum Leap

This show had an amazing concept that made up for its special effects being aged.

18 Power Rangers
19 Star Wars: The Clone Wars Star Wars: The Clone Wars is an American 3D CGI animated television series created by George Lucas and produced by Lucasfilm Animation with the division Lucasfilm Animation Singapore, Lucasfilm and CGCG Inc.

Best Show EVER. And that's coming from a High Schooler. Still pissed at Disney for canceling it. Then again, who isn't pissed at Disney?

If you want to put a sci fi show it should be a very cool one so this show is awesome.

Very good point Disney Ruined star wars T.V

20 Six Million Dollar Man
21 Terra Nova
22 The Outer Limits
23 Star Trek: Deep Space Nine

This show is not the typical 'boldly going' of most trek, and although all star trek is great, the focus in religion, war, and interstellar politics puts it above the other ST series as well as other great shows like Firefly and Farscape

I have not watched BSG though except the miniseries, but from that miniseries, it looks to be awesome.

An amazing show with a really good plot arc being the dominion war.

24 Alf ALF is an American science fiction sitcom that aired on NBC from September 22, 1986 to March 24, 1990. It was the first television series to be presented in Dolby Surround.

ALF is the best! Put this on number 1. it's my favourite sitcom!

25 Buck Rogers in the 25th Century
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