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The Most Exciting Sci-Fi Series Ever Made 

Ranker TV
Updated February 21, 2020 3.1k votes 263 voters 2.4k views 75 items

List Rules Only science fiction (not fantasy) television series that historically offer galactic levels of excitement.

The top sci-fi TV shows ever aired are some of the most exciting and thought-provoking to watch on television, but which is the best of them all? Determining which science fiction TV series is the best isn't an easy task given the plethora of options available, but this list might make it just a bit easier. These days, with the use of digital streaming, more and more shows people have forgotten are being rewatched, checked out for the first time, or even remade into new classics for new generations to enjoy, but which of these sci-fi shows is the best of them all in terms of excitement?

Would something newer like Star Trek: Discovery beat out a classic on this list like Star Trek: The Original Series, the very show that inspired it? For a science fiction series to be truly exciting, it has to be the kind that depicts more than just cool new tech or rapid-fire sci-fi action scenes - it needs to show a conflict between one or more groups of people, aliens, robots, or whatever in which survival is key. An exciting sci-fi show gets the audience has to get invested in the story.

The only way to find out which are the best is to vote up your favorite sci-fi series below, but remember, this list is all about excitement! Which series is more exciting than the one below it? Don't forget to add your favorite sci-fi show to the list if it's missing and vote for your favorites below!

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list ordered by
1
Firefly is listed (or ranked) 1 on the list The Most Exciting Sci-Fi Series Ever Made
Nathan Fillion, Gina Torres, Alan Tudyk

Premiered: 2002

Number of Seasons: 1

Number of Episodes: 14

Network: Fox Broadcasting Company

Genres (Tv): Space Western, Space opera, Drama, Comedy-drama, Science Fiction

Firefly is an American space western science fiction drama television series created by writer and director Joss Whedon, under his Mutant Enemy Productions label. Whedon served as an executive ...more
2
Star Trek: The Next Gene... is listed (or ranked) 2 on the list The Most Exciting Sci-Fi Series Ever Made
Patrick Stewart, Brent Spiner, Jonathan Frakes

Premiered: 1987

Number of Seasons: 7

Number of Episodes: 178

Genres (Tv): Action/Adventure, Drama, Adventure film, Action, Science Fiction

Star Trek: The Next Generation is an American science fiction television series created by Gene Roddenberry twenty-one years after the original Star Trek series debuted in 1966. Roddenberry, ...more
3
Battlestar Galactica is listed (or ranked) 3 on the list The Most Exciting Sci-Fi Series Ever Made
Edward James Olmos, Mary McDonnell, Jamie Bamber

Premiered: 2004

Number of Seasons: 4

Number of Episodes: 75

Network: Syfy

Genres (Tv): Space opera, Military science fiction, Political drama, Drama, Psychological thriller, + more

Battlestar Galactica is an American military science fiction television series, and part of the Battlestar Galactica franchise. The show was developed by Ronald D. Moore and executive produced ...more
4
Star Trek: The Original ... is listed (or ranked) 4 on the list The Most Exciting Sci-Fi Series Ever Made
William Shatner, Leonard Nimoy, DeForest Kelley

Premiered: 1966

Number of Seasons: 3

Number of Episodes: 79

Network: NBC

Genres (Tv): Action/Adventure, Drama, Adventure film, Action, Science Fiction

Star Trek is an American science fiction television series created by Gene Roddenberry that follows the adventures of the starship USS Enterprise and its crew. It later acquired the retronym of ...more
5
Stargate SG-1 is listed (or ranked) 5 on the list The Most Exciting Sci-Fi Series Ever Made
Richard Dean Anderson, Michael Shanks, Amanda Tapping

Premiered: 1997

Number of Seasons: 10

Number of Episodes: 214

Network: Showtime, Syfy

Genres (Tv): Military science fiction, Action/Adventure, Adventure film, Action, Science Fiction, + more

Stargate SG-1 is an adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is ...more
6
The Expanse is listed (or ranked) 6 on the list The Most Exciting Sci-Fi Series Ever Made
Thomas Jane, Steven Strait, Cas Anvar

Premiered: 2015

Genres (Tv): Mystery, Sci-Fi

The Expanse (Syfy, 2015) is an American science fiction television series developed by Mark Fergus and Hawk Ostby, based on the novels by James S. A. Corey. In a future where humanity has ...more
7
Stargate Atlantis is listed (or ranked) 7 on the list The Most Exciting Sci-Fi Series Ever Made
Joe Flanigan, Rachel Luttrell, David Hewlett

Premiered: 2004

Number of Seasons: 5

Number of Episodes: 100

Network: Syfy

Genres (Tv): Military science fiction, Action/Adventure, Adventure film, Action, Science Fiction, + more

Stargate Atlantis is a Canadian-American adventure and military science fiction television series and part of MGM's Stargate franchise. The show was created by Brad Wright and Robert C. Cooper ...more
8
Doctor Who is listed (or ranked) 8 on the list The Most Exciting Sci-Fi Series Ever Made
Christopher Eccleston, David Tennant, Matt Smith

Premiered: 1963

Number of Seasons: 26

Number of Episodes: 798

Network: British Broadcasting Corporation, BBC America, BBC One, S4C, BBC HD

Genres (Tv): Sci-fi, Adventure, Drama

Doctor Who (BBC, 2005) is a British science-fiction television show created by Sydney Newman, C. E. Webber, and Donald Wilson. The further adventures in time and space of the alien adventurer ...more
9
Star Trek: Enterprise is listed (or ranked) 9 on the list The Most Exciting Sci-Fi Series Ever Made
Scott Bakula, John Billingsley, Jolene Blalock

Premiered: 2001

Number of Seasons: 4

Number of Episodes: 98

Network: UPN

Genres (Tv): Military science fiction, Action/Adventure, Drama, Adventure film, Action, + more

Star Trek: Enterprise is a science fiction TV series and a prequel to the original Star Trek. The series premiered September 26, 2001, on the UPN television network with the final episode airing ...more
10
Stranger Things is listed (or ranked) 10 on the list The Most Exciting Sci-Fi Series Ever Made
Winona Ryder, David Harbour, Finn Wolfhard

Premiered: 2016

Number of Seasons: 3

Network: Netflix

Genres (Tv): Sci-fi, Horror, Supernatural, Period drama

Stranger Things (Netflix, 2016) is an American science fiction-horror web television series created by The Duffer Brothers. When a young boy (Noah Schnapp) disappears, his mother (Winona Ryder), ...more
11
Timeless is listed (or ranked) 11 on the list The Most Exciting Sci-Fi Series Ever Made
SJSAlias added Timeless Abigail Spencer, Matt Lanter, Starring Abigail Spencer Matt Lanter Malcolm Barrett

Genres (Tv): Drama, Science Fiction, Action

Timeless (NBC, 2016) tollows the adventures of an unusual trio—a history professor (Abigail Spencer), a scientist (Malcolm Barrett), and a soldier (Matt Lanter)—as they attempt to stop Garcia ...more
12
Star Trek: Voyager is listed (or ranked) 12 on the list The Most Exciting Sci-Fi Series Ever Made
Kate Mulgrew, Robert Beltran, Roxann Dawson

Premiered: 1995

Number of Seasons: 7

Number of Episodes: 172

Network: UPN

Genres (Tv): Action/Adventure, Drama, Adventure film, Action, Science Fiction

Star Trek: Voyager is a science fiction television series, set in the Star Trek universe. The show takes place during the 2370s, and begins on the far side of the Milky Way galaxy, 75,000 ...more
13
Fringe is listed (or ranked) 13 on the list The Most Exciting Sci-Fi Series Ever Made
Anna Torv, Joshua Jackson, Jasika Nicole

Premiered: 2008

Number of Seasons: 5

Number of Episodes: 100

Network: Fox Broadcasting Company

Genres (Tv): Drama, Horror Film, Mystery, Thriller, Science Fiction

Fringe is an American science fiction television series created by J. J. Abrams, Alex Kurtzman, and Roberto Orci. It premiered on the Fox Broadcasting network on September 9, 2008, and concluded ...more
14
Star Trek: Deep Space Ni... is listed (or ranked) 14 on the list The Most Exciting Sci-Fi Series Ever Made
Avery Brooks, Rene Auberjonois, Cirroc Lofton

Premiered: 1993

Number of Seasons: 7

Number of Episodes: 176

Network: UPN

Genres (Tv): Military science fiction, Action/Adventure, Drama, Adventure film, Action, + more

Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek universe. The show is set in the Milky Way galaxy, in the years 2369–2375. In contrast to the setting of ...more
15
Babylon 5 is listed (or ranked) 15 on the list The Most Exciting Sci-Fi Series Ever Made
Jerry Doyle, Mira Furlan, Richard Biggs

Premiered: 1994

Number of Seasons: 5

Number of Episodes: 110

Network: Prime Time Entertainment Network, TNT

Genres (Tv): Space opera, Science Fiction

Babylon 5 is an American space opera television series created by writer and producer J. Michael Straczynski, under the Babylonian Productions label, in association with Straczynski's Synthetic ...more
16
Farscape is listed (or ranked) 16 on the list The Most Exciting Sci-Fi Series Ever Made
Ben Browder, Claudia Black, Anthony Simcoe

Premiered: 1999

Number of Seasons: 4

Number of Episodes: 88

Network: Syfy, Nine Network

Genres (Tv): Science Fiction, Puppet

Farscape is an Australian/American science fiction television series, produced originally for the Nine Network. The series was conceived by Rockne S. O'Bannon and produced by Jim Henson ...more
17
Battlestar Galactica is listed (or ranked) 17 on the list The Most Exciting Sci-Fi Series Ever Made
Edward James Olmos, Mary McDonnell, Jamie Bamber

Premiered: 1978

Number of Seasons: 1

Number of Episodes: 24

Network: American Broadcasting Company

Genres (Tv): Science Fiction

Battlestar Galactica is an American science fiction television series, created by Glen A. Larson, that began the Battlestar Galactica franchise. Starring Lorne Greene, Richard Hatch and Dirk ...more
18
Agents of S.H.I.E.L.D. ... is listed (or ranked) 18 on the list The Most Exciting Sci-Fi Series Ever Made
Clark Gregg, Ming-Na Wen, Brett Dalton

Premiered: 2013

Number of Seasons: 1

Number of Episodes: 13

Genres (Tv): Drama, Action, Adventure Film, Science Fiction, Fantasy

Marvel's Agents of S.H.I.E.L.D., or simply Agents of S.H.I.E.L.D., is an American television series created for ABC by Joss Whedon, Jed Whedon, and Maurissa Tancharoen, based on the Marvel ...more
19
Eureka is listed (or ranked) 19 on the list The Most Exciting Sci-Fi Series Ever Made
Colin Ferguson, Salli Richardson-Whitfield, Erica Cerra

Premiered: 2006

Number of Seasons: 4

Number of Episodes: 33

Network: Syfy, Sky1

Genres (Tv): Police procedural, Drama, Comedy-drama, Comedy, Science Fiction

Eureka was an American science fiction television series that premiered on Syfy on July 18, 2006. The fifth and final season ended on July 16, 2012. The show was set in a fictional town in ...more
20
Altered Carbon is listed (or ranked) 20 on the list The Most Exciting Sci-Fi Series Ever Made
Joel Kinnaman, Renée Elise Goldsberry, James Purefoy

Premiered: 2018

Network: Netflix

Genres (Tv): Sci-fi, Mystery, Action

Altered Carbon is an American science fiction television series created by Laeta Kalogridis, based on the novel by Richard K. Morgan. In a future where human minds are digitized and downloaded ...more
21
Quantum Leap is listed (or ranked) 21 on the list The Most Exciting Sci-Fi Series Ever Made
Scott Bakula, Dean Stockwell, Deborah Pratt

Premiered: 1989

Number of Seasons: 5

Number of Episodes: 95

Network: NBC

Genres (Tv): Procedural drama, Drama, Science Fiction

Quantum Leap is an American television series that originally aired on NBC for five seasons, from March 1989 through May 1993. Created by Donald P. Bellisario, it starred Scott Bakula as Dr. Sam ...more
22
Lost in Space is listed (or ranked) 22 on the list The Most Exciting Sci-Fi Series Ever Made
Russell Merryman added Molly Parker, Toby Stephens, Taylor Russell

Premiered: 2018

Number of Seasons: 2 current

Genres (Tv): Sci-fi

Lost in Space (Netflix, 2018) is an American science fiction web television series created by Matt Sazama and Burk Sharpless, and a reboot of the 1965 series. After encountering a rip in ...more
23
Falling Skies is listed (or ranked) 23 on the list The Most Exciting Sci-Fi Series Ever Made
Noah Wyle, Drew Roy, Maxim Knight

Premiered: 2011

Number of Seasons: 2

Number of Episodes: 10

Network: TNT

Genres (Tv): Apocalyptic and post-apocalyptic fiction, Adventure film, Action, Science Fiction

Falling Skies is an American science fiction post-apocalyptic dramatic television series created by Robert Rodat and executive produced by Steven Spielberg. The series stars Noah Wyle as Tom ...more
24
Warehouse 13 is listed (or ranked) 24 on the list The Most Exciting Sci-Fi Series Ever Made
Eddie McClintock, Joanne Kelly, Saul Rubinek

Premiered: 2009

Number of Seasons: 3

Number of Episodes: 52

Network: Syfy

Genres (Tv): Supernatural, Action/Adventure, Adventure film, Comedy-drama, Comedy, + more

Warehouse 13 is a U.S. television science fiction series that premiered on July 7, 2009, on the Syfy network. Executive-produced by Jack Kenny and David Simkins, the dramatic comedy from ...more
25
The Mandalorian is listed (or ranked) 25 on the list The Most Exciting Sci-Fi Series Ever Made
Pedro Pascal, Gina Carano, Nick Nolte

Premiered: 2019

Number of Seasons: 1

Network: Disney+

Genres (Tv): Drama, Space Opera, Science Fiction

The Mandalorian (Disney+, 2019) is an American space opera web television series set in the Star Wars universe created by George Lucas. Taking place after the events in Return of the Jedi, but ...more