1. Battlestar Galactica
When an old enemy, the Cylons, resurface and obliterate the 12 colonies, the crew of the aged Galactica protect a small civilian fleet - the last of humanity - as they journey toward the fabled 13th colony, Earth.
It has an average vote of 8.2 on TMDB.
2. Stargate SG-1
The story of Stargate SG-1 begins about a year after the events of the feature film, when the United States government learns that an ancient alien device called the Stargate can access a network of such devices on a multitude of planets. SG-1 is an elite Air Force special operations team, one of more than two dozen teams from Earth who explore the galaxy and defend against alien threats such as the Goa'uld, Replicators, and the Ori.
It has an average vote of 8.235 on TMDB.
3. Dollhouse
Echo is a member of a highly illegal and underground group of individuals whose personalities have been wiped clean so they can be imprinted with any number of new personas. Confined between missions to a secret facility known as the Dollhouse, the "Actives" are hired by the wealthy, powerful and connected to wholly become—with mind, personality and physiology—whomever the client wants or needs them to be. They know no other life than the specific engagements they are in at that time—or do they?
It has an average vote of 7.266 on TMDB.
4. Star Trek: The Next Generation
Follow the intergalactic adventures of Capt. Jean-Luc Picard and his loyal crew aboard the all-new USS Enterprise NCC-1701D, as they explore new worlds.
It has an average vote of 8.346 on TMDB.
5. Babylon 5
Babylon 5 is a five-mile long space station located in neutral space. Built by the Earth Alliance in the 2250s, its goal is to maintain peace among the various alien races by providing a sanctuary where grievances and negotiations can be worked out among duly appointed ambassadors. A council made up of representatives from the five major space-faring civilizations - the Earth Alliance, Minbari Federation, Centauri Republic, Narn Regime, and Vorlon Empire - work with the League of Non-Aligned Worlds to keep interstellar relations under control. Aside from its diplomatic function, Babylon 5 also serves as a military post for Earth and a port of call for travelers, traders, businessmen, criminals, and Rangers.
It has an average vote of 8.1 on TMDB.
6. Monty Python's Flying Circus
A British sketch comedy series with the shows being composed of surreality, risqué or innuendo-laden humour, sight gags and observational sketches without punchlines.
It has an average vote of 8.236 on TMDB.
7. Buffy the Vampire Slayer
Into every generation a slayer is born: one girl in all the world, a chosen one. She alone will wield the strength and skill to fight the vampires, demons, and the forces of darkness; to stop the spread of their evil and the swell of their number. She is the Slayer.
It has an average vote of 8.2 on TMDB.
8. FlashForward
When the entire world blacks out for two minutes and seventeen seconds, everyone sees a flash of their own future 6 months from the present. For some, the future is hopeful, while for others, it is unexpected. For a few, it doesn't seem to exist. Knowing their fate will alter each person's life, destinies will be changed.
It has an average vote of 7.044 on TMDB.
9. Halt and Catch Fire
During the rise of the PC era in the early 1980s, an unlikely trio - a visionary, an engineer and a prodigy - take personal and professional risks in the race to build a computer that will change the world as they know it.
It has an average vote of 8 on TMDB.
10. Battlestar Galactica
A re-imagining of the original series in which a "rag-tag fugitive fleet" of the last remnants of mankind flees pursuing robots while simultaneously searching for their true home, Earth.
It has an average vote of 8.2 on TMDB.
11. Black Mirror
Over the last ten years, technology has transformed almost every aspect of our lives before we've had time to stop and question it. In every home; on every desk; in every palm - a plasma screen; a monitor; a smartphone - a black mirror of our 21st Century existence.
It has an average vote of 8.29 on TMDB.
12. The Expanse
A thriller set two hundred years in the future following the case of a missing young woman who brings a hardened detective and a rogue ship's captain together in a race across the solar system to expose the greatest conspiracy in human history.
It has an average vote of 8 on TMDB.
13. Taken
The show takes place from 1944 to 2002 and follows the lives of three families: the Crawfords, who seek to cover up the Roswell crash and the existence of aliens; the Keys, who are subject to frequent experimentation by the aliens; and the Clarkes, who sheltered one of the surviving aliens from the crash.
It has an average vote of 7.5 on TMDB.
14. Rome
A down-to-earth account of the lives of both illustrious and ordinary Romans set in the last days of the Roman Republic.
It has an average vote of 8.3 on TMDB.
15. Tru Calling
A university graduate working in the city morgue is able to repeat the same day over again to prevent murders or other disasters.
It has an average vote of 7.4 on TMDB.
16. Star Trek: Voyager
Pulled to the far side of the galaxy, where the Federation is 75 years away at maximum warp speed, a Starfleet ship must cooperate with Maquis rebels to find a way home.
It has an average vote of 7.8 on TMDB.
17. The Colour of Magic
As Rincewind involuntarily becomes a guide to the naive tourist Twoflower, they find themselves forced to flee the city of Ankh-Morpork to escape a terrible fire, and begin on a journey across the Disc. Unknown to them, their journey and fate is being decided by the Gods playing a board game the whole time.
It has an average vote of 6.7 on TMDB.
18. Six Feet Under
When death is your business, what is your life? For the Fisher family, the world outside of their family-owned funeral home continues to be at least as challenging as—and far less predictable than—the one inside.
It has an average vote of 8.1 on TMDB.
19. 30 Rock
Liz Lemon, the head writer for a late-night TV variety show in New York, tries to juggle all the egos around her while chasing her own dream.
It has an average vote of 7.4 on TMDB.
20. Sakura Diaries (桜通信)
A Keio University exam candidate, Touma Inaba, is interrupted when a cute young girl, Urara Kasuga, arrives at his hotel room door. She later turns out to be his cousin who he barely remembers from his childhood. Urara, who had felt something special for him , invites Touma to live with her since he has no place to stay other than the hotel room. Before taking the test, Touma meets Meiko Yotsuba, a beautiful, sophisticated woman also trying to get into Keio. Meiko gets into Keio but Touma does not, due to a cold Urara had given him shortly before. Although he did not make it, he pretends he does to earn the respect of Meiko. Touma is caught up in a love triangle with Urara and Meiko, while struggling to keep Meiko believing he's really a Keio student and still be there for Urara at the same time.
It has an average vote of 6.1 on TMDB.
