A teacher discovers a time portal that leads to October 21st, 1960 and goes on a quest to try and prevent the assassination of John F. Kennedy, which is complicated by the presence of Lee Harvey Oswald and the fact that he's falling in love with the past itself.

American thriller limited series based on the book 11/22/63 by Stephen King

Tru Davies, a medical grad student in Boston whose grant is suddenly pulled out from under her, takes a job at a local morgue. There, she discovers that she has the power to "re-live" the previous day over again to help the people who wrongly ended up dead. She uses this gift not only to save lives, but to help her trouble-plagued family - her older sister Meredith, a lawyer and drug addict in denial; and her younger, irresponsible, slacker, gambling brother Harrison.

After the entire world's population blacks out for approximately 2 minutes and 17 seconds, which in effect causes the entire world to see a glimpse of life 6 months into the future, an elite FBI task force is formed to investigate who/what caused the global blackout, whether the events foreseen were simply flashes or true events of what's to come, and whether or not it could possibly happen again...

Continuum is a one-hour police drama centered on Kiera Cameron, a regular cop from 65 years in the future who finds herself trapped in present-day Vancouver. She is alone, a stranger in a strange land, and has eight of the most ruthless criminals from the future, known as Liber8, loose in the city. Lucky for Kiera, through the use of her CMR (cellular memory recall), a futuristic liquid chip technology implanted in her brain, she connects with Alec Sadler, a 17-year-old tech genius. When Kiera calls and Alec answers, a unique partnership begins. Kiera's first desire is to get "home." But until she figures out how, she must survive in our time period and use all the resources available to her to track and capture the terrorists before they alter history enough to change the course of the future. After all, what's the point of going back if the future isn't the one you left?

Canadian science fiction series (2012-2015)

Hundreds of years from now, the last surviving humans discover the means of sending consciousness back through time, directly into people in the 21st century. These Travelers assume the lives of seemingly random people, while secretly working as teams to perform missions in order to save humanity from a terrible future. These travelers are: FBI Special Agent Grant MacLaren, the team's leader; Marcy, a young, intellectually disabled woman in the care of her social worker, David; Trevor, a high school quarterback; Carly, a single mom in an abusive relationship; and Philip, a heroin-addicted college student. Armed only with their knowledge of history and an archive of social media profiles, the travelers discover that 21st century lives and relationships are as much a challenge as their high-stakes missions.

Canadian-American time-traveling TV series

Investigative newspaper reporter Dan Vassar has a 'gift' to suddenly travel back in time, only to enable him to set straight something which caused great problems in the present, for him, his loved-ones or broader society. That puts great strain on Dan's family, including doting but 'deserted' young son Zac and brother Jack, a cop who wants to learn the truth.

A police detective in 2016 discovers that she is able to speak via a ham radio with her estranged father; Frank Sullivan, a detective who died in 1996 and the two must work together to change the history of tragic events to come while also getting the chance to heal their complicated relationship.

2016 American science fiction drama television series

Brett Hopper is a police detective. One day when the day begins, he notices a few unusual things, and when he goes home, he is arrested. He is told that he's the suspect in the murder of a D.A. whom he says that he doesn't know. While in his holding cell, he is taken out and brought somewhere, where a man whom he doesn't know tells him something. That's when the sun goes down. He then wakes up and discovers he is reliving the day again. And armed with what little info he learned from the day before, he tries to find out why he is being framed. But comes up short but when the day ends he relives it again and again.

Best Time Loop/Time Travel shows

More lists by Erik

Space Science Fiction (but not Space Opera)

Alternative History/Past Fiction

Best Comic-Based Shows