1. Arrow
Spoiled billionaire playboy Oliver Queen is missing and presumed dead when his yacht is lost at sea. He returns five years later a changed man, determined to clean up the city as a hooded vigilante armed with a bow.
It has an average vote of 6.817 on TMDB.
2. Game of Thrones
Seven noble families fight for control of the mythical land of Westeros. Friction between the houses leads to full-scale war. All while a very ancient evil awakens in the farthest north. Amidst the war, a neglected military order of misfits, the Night's Watch, is all that stands between the realms of men and icy horrors beyond.
It has an average vote of 8.45 on TMDB.
3. Westworld
A dark odyssey about the dawn of artificial consciousness and the evolution of sin. Set at the intersection of the near future and the reimagined past, it explores a world in which every human appetite, no matter how noble or depraved, can be indulged.
It has an average vote of 8.048 on TMDB.
4. Stranger Things
When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl.
It has an average vote of 8.611 on TMDB.
5. Selena: The Series
As Mexican-American Tejano singer Selena comes of age and realizes her dreams, she and her family make tough choices to hold on to love and music.
It has an average vote of 7.5 on TMDB.
6. Bewitched
Samantha Stephens is a seemingly normal suburban housewife who also happens to be a genuine witch, with all the requisite magical powers. Her husband Darrin insists that Samantha keep her witchcraft under wraps, but situations invariably require her to indulge her powers while keeping her bothersome mother Endora at bay.
It has an average vote of 7.889 on TMDB.
7. 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 8.349 on TMDB.
8. Star Trek: Enterprise
During the mid-22nd century, a century before Captain Kirk's five-year mission, Jonathan Archer captains the United Earth ship Enterprise during the early years of Starfleet, leading up to the Earth-Romulan War and the formation of the Federation.
It has an average vote of 7.573 on TMDB.
9. DC's Legends of Tomorrow
When heroes alone are not enough ... the world needs legends. Having seen the future, one he will desperately try to prevent from happening, time-traveling rogue Rip Hunter is tasked with assembling a disparate group of both heroes and villains to confront an unstoppable threat — one in which not only is the planet at stake, but all of time itself. Can this ragtag team defeat an immortal threat unlike anything they have ever known?
It has an average vote of 7.314 on TMDB.
10. DreamWorks Dragons
From the creators of "How to Train Your Dragon" comes a new series that takes Hiccup and Toothless to the edge of adventure.
It has an average vote of 7.698 on TMDB.
11. Suits
While running from a drug deal gone bad, Mike Ross, a brilliant young college-dropout, slips into a job interview with one of New York City's best legal closers, Harvey Specter. Tired of cookie-cutter law school grads, Harvey takes a gamble by hiring Mike on the spot after he recognizes his raw talent and photographic memory.
It has an average vote of 8.217 on TMDB.
12. The Big Bang Theory
Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
It has an average vote of 7.896 on TMDB.
13. Boys Over Flowers (꽃보다 남자)
Unassuming high school girl Jan-di stands up to — and eventually falls for — a spoiled rich kid who belongs to the school's most powerful clique.
It has an average vote of 8.241 on TMDB.
14. She Was Pretty (그녀는 예뻤다)
After a complete reversal of fortune and looks, childhood sweethearts reunite for the first time in 15 years as employees at a fashion magazine.
It has an average vote of 8.277 on TMDB.
15. The Vampire Diaries
The story of two vampire brothers obsessed with the same girl, who bears a striking resemblance to the beautiful but ruthless vampire they knew and loved in 1864.
It has an average vote of 8.337 on TMDB.
16. The King: Eternal Monarch (더 킹 : 영원의 군주)
Korean emperor Lee Gon tries to close the doors to a parallel world which was opened by demons; a detective tries to protect the people and the one she loves.
It has an average vote of 8.4 on TMDB.
17. Star Trek: Discovery
Follow the voyages of Starfleet on their missions to discover new worlds and new life forms, and one Starfleet officer who must learn that to truly understand all things alien, you must first understand yourself.
It has an average vote of 7.118 on TMDB.
18. The Flash
When a bolt of lightening crashes through a police crime lab, a mix of electrically charged substances bathes chemist Barry Allen, transforming him into the fastest man alive--The Flash.
It has an average vote of 7.414 on TMDB.
19. 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.
20. Jewel in the Palace (대장금)
Orphaned Jang-geum becomes the first female physician in the Joseon Dynasty and her determination is tested when people around her start showing their true faces.
It has an average vote of 8.559 on TMDB.