Unraveling Kamala Harris's genealogy

20/20 is an American television newsmagazine that has been broadcast on ABC since June 6, 1978. Created by ABC News executive Roone Arledge, the show was designed similarly to CBS's 60 Minutes but focuses more on human interest stories than international and political subjects. The program's name derives from the "20/20" measurement of visual acuity. The hour-long program has been a staple on Friday evenings for much of the time since it moved to that timeslot from Thursdays in September 1987, though special editions of the program occasionally air on other nights.

In this true-crime documentary, a cult expert and filmmaker infiltrate a polygamist sect to expose a self-proclaimed prophet and bring him to justice.

A documentary news series with a taboo-breaking team who deliver incredible news stories from around the world.

Infographics and archival footage deliver bite-size history lessons on scientific breakthroughs, social movements and world-changing discoveries.

Featuring rare footage and interviews with CIA insiders, this edge-of-your-seat documentary series traces the epic hunt for Osama bin Laden.

A series of standalone documentaries powered by the unparalleled journalism and insight of The New York Times, bringing viewers close to the essential stories of our time.

An in-depth look at the history and pop cultural significance of horror films.

What happened to Mica Miller? This documentary series retraces her promising life, toxic marriage and the mysterious circumstances of her death.

Documentary series that examines the Jonestown Massacre 40 years later.

Explore the surprising things we know (and don’t know) about why people are the way they are through expert interviews, rare footage from historical experiments, and brand-new, ground-breaking demonstrations of human nature at work.

Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now focuses mainly on true crime stories with only occasional editions that focus on other topics.

Transcending the music documentary genre by creating a new lane that merges music, socio-cultural commentary and and intimate family portrait of the Wu-Tang Clan.

Insider accounts and never-seen-before footage tell the story of the 7/7 bombings on London's transport network in 2005 — and its explosive aftermath.

Explore the history of the American LGBTQ movement through the lens of TV in this five-part docuseries. Combining archival footage with new interviews, the series looks at homophobia, the evolution of LGBTQ characters, and coming out in the TV world.

Through bodycam footage, texts and interviews with loved ones, this documentary investigates the horrifying murder of four University of Idaho students.

From crippling payday loans to cars that cheat emissions tests, this investigative series exposes brazen acts of corporate greed and corruption.

The documentary series explores different political figures throughout history.

The rise and fall of American football star, O.J. Simpson, from his days growing up in Los Angeles to his murder trial that polarized the country.

This intense documentary series details true stories of neighbors gone bad, from heinous fraud schemes to senseless acts of violent retribution.

In a tumultuous era, 1971 was a year of musical innovation and rebirth fueled by the political and cultural upheaval of the time. Stars reached new heights, fresh talent exploded onto the scene, and boundaries expanded like never before.