Alien Files: Reopened

Scientists and sci-fi writers explore a hypothetical first-contact event between aliens and humans.

The search for ET, all the latest news presented by Linda Moulton Howe.

In this special edition series of The Proof Is Out There, journalist Tony Harris will present compelling evidence of UFO sightings from around the globe. Are these videos proof that aliens exist? Tony and a team of experts will analyze the evidence and render a verdict.

Revisit the most compelling mysteries explored over the past 15 years of "Ancient Aliens." Experts like Giorgio Tsoukalos, David Childress, William Henry, and Jason Martell engage in conversations around Ancient Astronaut Theory in each episode.

The high commander of an alien expedition lands on Earth -- what he considers to be the least-important planet -- in human form as Dick Solomon. Along for the ride are his alien compatriots Harry, Sally and Tommy -- who is the eldest of the group but is now angrily trapped in a teen's body.

Yapool, an ancient interdimensional race of beings tries to conquer the Planet Earth with his army of monsters, called Terrible-Monsters. The newest member of the Ultra Brothers, Ultraman Ace, arrives on Earth to aid humanity in the battle against Yapool. Touched by the sacrifices of Seiji Hokuto and Yuko Minami, he revives them and grants them the Ultra Rings, which allows them to transform into Ultraman Ace in times of need.

The TLT is a covert international anti-monster unit established secretly to combat Space Beasts, mysterious monsters that are out to attack humans in the year 2009. One of the TLT's new recruits, Kazuki Komon, is attacked by one of them prior to reporting for duty. However, he is saved by a silver giant that he names "Ultraman". What no one knows is that the silver giant is an Ultraman — to be precise, Ultraman Nexus, ready to fight the Space Beasts to save the planet Earth.

The show takes place from 1944 to 2002 and follows the lives of three families: the Crawfords, who seek to cover up the Roswell crash and the existence of aliens; the Keys, who are subject to frequent experimentation by the aliens; and the Clarkes, who sheltered one of the surviving aliens from the crash.

20th-century astronaut Buck Rogers awakens in the 25th century after a freak accident puts him in suspended animation for 500 years. Upon returning to Earth and discovering the planet is recovering from a nuclear war, Buck uses his combat skills and ingenuity to protect Earth and fight evil throughout the galaxy alongside starfighter pilot Colonel Wilma Deering and robot companion Twiki.

Hayata is a member of the Science Patrol, an organization tasked with investigating bizarre anomalies. He is mortally wounded when accidently encountering an alien being from Land of Light, who grants Hayata new life as the two are merged into one. Now, whenever a threat arises that is too great for the Science Patrol to handle, Hayata activates the beta capsule and becomes the hero known as Ultraman.

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.

Investigates a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Fresh, new evidence and perspectives will be showcased, such as never-before-released documents, personal diaries and DNA evidence.

Real people sit down with friends and family to share terrifying true stories from their past, re-created through chilling re-enactments.

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.

Explore the world’s most fascinating, strange and inexplicable mysteries. Each episode features compelling contributions from scientists, historians, witnesses and experiencers—each seeking to shed light on how the seemingly impossible actually can happen.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

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.

Through the prism of Jeff Goldblum's always inquisitive and highly entertaining mind, nothing is as it seems. Each episode is centered around something we all love — like sneakers or ice cream — as Jeff pulls the thread on these deceptively familiar objects and unravels a wonderful world of astonishing connections, fascinating science and history, amazing people, and a whole lot of surprising big ideas and insights.

An insider's look at the engineering and scientific miracles behind the things that form the modern world.

Don Wildman unearths relics from the world's greatest institutions to reveal secrets from the past. He examines each artifact to illuminate history's most incredible triumphs, sensational crimes and bizarre encounters.