Survivorman

Some of the most amazing, eye-opening and downright scary paranormal videos from around the world are featured as a panel of experts break down the footage and analyze what exactly the eyewitnesses captured.

Profiles of some of the men who choose to live off the grid in the unspoiled wilderness, where dangers like mudslides, falling trees and bears are all part of everyday life.

Viewers go deep into an Alaskan winter to meet six tough and resilient residents as they try to stay one step ahead of storms and man-eating beasts to make it through to spring. The closest neighbor to Sue Aikens is more than 300 miles away. Eric Salitan subsists solely on what he hunts and forages. Chip and Agnes Hailstone catch fish for currency in bartering for supplies, and Andy and Kate Bassich use their pack of sled dogs for transportation.

In 2004 Ewan McGregor and Charley Boorman embarked on an epic challenge to bike 20,000-miles across 12 countries and 19 time zones in just 115 days. Watch as two friends ride around the world together and, against all the odds, realize their dream.

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.

Follows 5 NBA players throughout an entire NBA series, delving into their on-court performance and off-court personal lives.

Actor Zac Efron journeys around the world with wellness expert Darin Olien in a travel show that explores healthy, sustainable ways to live.

This hourlong documentary series focuses on the issue of teen pregnancy, with each episode detailing the wide variety of challenges -- marriage, adoption, finances, gossip and graduating high school among them — a pregnant teenager faces while still coming of age.

Utilizing a team of reputable professionals working alongside "The Secret of Skinwalker Ranch" veterans, this series explores other sites of unusual activity and "high strangeness" phenomena in an effort to discover if the activity documented on Skinwalker Ranch is not only real, but pervasive.

MegaStructures is a documentary television series appearing on the National Geographic Channel in the United States and the United Kingdom, Channel 5 in the United Kingdom, France 5 in France, and 7mate in Australia. Each episode is an educational look of varying depth into the construction, operation, and staffing of various structures or construction projects, but not ordinary construction products. Generally containing interviews with designers and project managers, it presents the problems of construction and the methodology or techniques used to overcome obstacles. In some cases this involved the development of new materials or products that are now in general use within the construction industry. MegaStructures focuses on constructions that are extreme; in the sense that they are the biggest, tallest, longest, or deepest in the world. Alternatively, a project may appear if it had an element of novelty or are a world first. This type of project is known as a Megaproject.