1. 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 7.902 on TMDB.
2. Supernatural
When they were boys, Sam and Dean Winchester lost their mother to a mysterious and demonic supernatural force. Subsequently, their father raised them to be soldiers. He taught them about the paranormal evil that lives in the dark corners and on the back roads of America ... and he taught them how to kill it. Now, the Winchester brothers crisscross the country in their '67 Chevy Impala, battling every kind of supernatural threat they encounter along the way.
It has an average vote of 8.294 on TMDB.
3. One Tree Hill
In Tree Hill, North Carolina two half brothers share a last name and nothing else. Brooding, blue-collar Lucas is a talented street-side basketball player, but his skills are appreciated only by his friends at the river court. Popular, affluent Nathan basks in the hero-worship of the town, as the star of his high school team. And both boys are the son of former college ball player Dan Scott whose long ago choice to abandon Lucas and his mother Karen, will haunt him long into his life with wife Deb and their son Nathan.
It has an average vote of 7.729 on TMDB.
4. Behind Her Eyes
A single mother enters a world of twisted mind games when she begins an affair with her psychiatrist boss while secretly befriending his mysterious wife.
It has an average vote of 7.407 on TMDB.
5. Halo
Depicting an epic 26th-century conflict between humanity and an alien threat known as the Covenant, the series weaves deeply drawn personal stories with action, adventure and a richly imagined vision of the future.
It has an average vote of 8.325 on TMDB.
6. While You Were Sleeping (당신이 잠든 사이에)
Burdened with visions of the future in their dreams, a young woman and two men try to prevent horrible events before they actually happen.
It has an average vote of 8.477 on TMDB.
7. Band of Brothers
Drawn from interviews with survivors of Easy Company, as well as their journals and letters, Band of Brothers chronicles the experiences of these men from paratrooper training in Georgia through the end of the war. As an elite rifle company parachuting into Normandy early on D-Day morning, participants in the Battle of the Bulge, and witness to the horrors of war, the men of Easy knew extraordinary bravery and extraordinary fear - and became the stuff of legend. Based on Stephen E. Ambrose's acclaimed book of the same name.
It has an average vote of 8.532 on TMDB.
8. Queen of Tears (눈물의 여왕)
The queen of department stores and the prince of supermarkets weather a marital crisis—until love miraculously begins to bloom again.
It has an average vote of 8.117 on TMDB.
9. Miss Marple: A Pocketful of Rye
When a handful of grain is found in the pocket of a murdered businessman, Miss Marple seeks a murderer with a penchant for nursery rhymes.
It has an average vote of 7.1 on TMDB.
10. 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 7.046 on TMDB.
11. Doctor Who
The Doctor is a Time Lord: a 900 year old alien with 2 hearts, part of a gifted civilization who mastered time travel. The Doctor saves planets for a living—more of a hobby actually, and the Doctor's very, very good at it.
It has an average vote of 7.517 on TMDB.
12. Destined with You (이 연애는 불가항력)
A lawyer bound by a centuries-old curse becomes entangled with a civil servant who holds the key to his freedom — igniting an unexpected romance.
It has an average vote of 8.1 on TMDB.
13. Weightlifting Fairy Kim Bok-joo (역도요정 김복주)
A competitive swimmer crosses paths with his childhood friend, a rising weight lifting star, and realizes that she has a secret crush on his cousin.
It has an average vote of 8.622 on TMDB.
14. Three-Body (三体)
Nanotechnology researcher Wang Miao is taken to the Joint Operations Center by police officer Shi Qiang, who's investigating the mysterious suicide wave among scientists worldwide, and recruited to sneak into an organization called the Frontiers of Science to help the investigation. When Wang Miao is contacted by the leader of the organization, Shen Yufei, she introduces him to a sophisticated VR video game called Three-Body, but soon he discovers that it's more than just a game.
It has an average vote of 7.9 on TMDB.
15. Revenge of Others (3인칭 복수)
A boy falls to his death at school, but Ok Chan-mi does not believe that her twin brother, Park Won-seok, committed suicide. Chan-mi transfers to her brother's school, Yongtan High, and meets Ji Soo-heon, who witnessed her brother's death. A "hero," who avenges bullied students, appears at Yongtan High. Chan-mi speculates that it may be connected to her brother and starts looking for this hero.
It has an average vote of 8.281 on TMDB.
16. Signal (시그널)
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
It has an average vote of 8 on TMDB.
17. Forecasting Love and Weather (기상청 사람들: 사내연애 잔혹사 편)
Inside a national weather service, love proves just as difficult to predict as rain or shine for a diligent forecaster and her free-spirited co-worker.
It has an average vote of 6.915 on TMDB.
18. Orphan Black
A streetwise hustler is pulled into a compelling conspiracy after witnessing the suicide of a girl who looks just like her.
It has an average vote of 7.81 on TMDB.
19. 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 8.1 on TMDB.
20. Lessons in Chemistry
In the 1950s, Elizabeth Zott's dream of being a scientist is challenged by a society that says women belong in the domestic sphere. She accepts a job on a TV cooking show and sets out to teach a nation of overlooked housewives way more than recipes.
It has an average vote of 8.3 on TMDB.