Popular Documentary TV Series on Free Services

Mayday

2003

Mayday

2003
8.2
Major real-life air disasters are depicted in this series. Each episode features a detailed dramatized reconstruction of the incident based on cockpit voice recorders and air traffic control transcripts, as well as eyewitnesses recounts and interviews with aviation experts.
Frontline

1983

Frontline

1983
7.4
Since it began in 1983, Frontline has been airing public-affairs documentaries that explore a wide scope of the complex human experience. Frontline's goal is to extend the impact of the documentary beyond its initial broadcast by serving as a catalyst for change.
NOVA

1974

NOVA

1974
7
PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.
MythBusters

2003

MythBusters

2003
7.8
MythBusters is a science entertainment television program created and produced by Australia's Beyond Television Productions for the Discovery Channel. The show's hosts, special effects experts Adam Savage and Jamie Hyneman, use elements of the scientific method to test the validity of rumors, myths, movie scenes, adages, Internet videos, and news stories.
Great Performances

1971

Great Performances

1971
5.5
The best in the performing arts from across America and around the world including a diverse programming portfolio of classical music, opera, popular song, musical theater, dance, drama, and performance documentaries.
Ancient Aliens

2010

Ancient Aliens

2010
6.9
Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
American Experience

1988

American Experience

1988
7.4
TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.
The Center Seat: 55 Years of Star Trek

2021

The Center Seat: 55 Years of Star Trek

2021
6.9
In honor of the sci-fi franchise’s 55th anniversary this year and produced by The Nacelle Company, the project will feature interviews with cast, crew and experts as it explores pivotal moments in the franchise’s history, from its inception at Lucille Ball’s production company Desilu to recent film and television adaptations.
Nature

1982

Nature

1982
8.1
Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy Antarctica. The show's primary focus is on animals and ecosystems around the world. A comic book based on the show, meant to be used an as educational tool for kids, was briefly distributed to museums and schools at no cost in the mid-2000s.
Beyond Belief: Fact or Fiction

1997

Beyond Belief: Fact or Fiction

1997
7.2
Can you tell the difference between fact and fiction? Several stories of strange, mysterious and incredible occurrences are chronicled during each episode. It is up to the viewer to decide which stories actually happened and which were completely fabricated by the show’s writers. The answer is revealed by Jonathan Frakes at the conclusion of each episode.
The Curse of Oak Island

2014

The Curse of Oak Island

2014
7.3
Follow brothers Marty and Rick Lagina through their effort to find the speculated - and as of yet undiscovered - buried treasure believed to have been concealed through extraordinary means on Oak Island.
Snapped

2004

Snapped

2004
7.9
The fascinating cases of every day, seemingly average moms, wives and girlfriends accused of murder. Did they really do it? And if so, why?
The Secret of Skinwalker Ranch

2020

The Secret of Skinwalker Ranch

2020
8
The investigation of the world’s most mysterious hot spot for UFO and “High Strangeness” phenomena with astrophysicist Dr. Travis Taylor who joins real estate tycoon Brandon Fugal, along with his team of scientists and researchers on Utah’s notorious Skinwalker Ranch. The team utilizes cutting edge technology to investigate the 512-acre property to uncover the possibly “otherworldly” perpetrators behind it all. With everything from mysterious animal deaths to hidden underground workings and possible gateways that open to other dimensions, witness the close encounters that go beyond conventional explanation, as the team risks everything to finally reveal the ultimate secret of Skinwalker Ranch.
Finding Your Roots

2012

Finding Your Roots

2012
6.8
Noted Harvard scholar Henry Louis Gates, Jr. has been helping people discover long-lost relatives hidden for generations within the branches of their family trees. Professor Gates utilizes a team of genealogists to reconstruct the paper trail left behind by our ancestors and the world’s leading geneticists to decode our DNA and help us travel thousands of years into the past to discover the origins of our earliest forebears.
American Masters

1986

American Masters

1986
7.4
American Masters is a PBS television series which produces biographies on enduring writers, musicians, visual and performing artists, dramatists, filmmakers, and others who have left an indelible impression on the cultural landscape of the United States.
Hard Knocks

2001

Hard Knocks

2001
7.7
An inside look at NFL training camps. From the top coaches to the rookies trying to make the team, Hard Knocks showcases what it takes to be in the NFL.
Diners, Drive-Ins and Dives

2007

Diners, Drive-Ins and Dives

2007
6.7
Host Guy Fieri takes a cross-country road trip to visit some of America's classic "greasy spoon" restaurants — diners, drive-ins and dives — that have been doing it right for decades.
Dateline

1992

Dateline

1992
6.3
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.
MotorWeek

1981

MotorWeek

1981
4.4
This award-winning weekly automotive magazine provides unbiased, consumer-oriented car news with feature stories on related topics.
30 for 30

2009

30 for 30

2009
7.4
30 for 30 is the title for a series of documentary films airing on ESPN, its sister networks, and online highlighting interesting people and events in sports history. This currently includes four "volumes" of 30 episodes each, a 13-episode series under the ESPN Films Presents title in 2011–2012, and a series of 30 for 30 Shorts shown through the ESPN.com website. The series has also expanded to include Soccer Stories, which aired in advance of the 2014 FIFA World Cup, and audio podcasts. This entry refers to the main Volumes of the series presented by ESPN