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.

Hosted and executive produced by Grammy and NAACP Image Award winner Ice-T (“Law & Order: Special Victims Unit”), the series spotlights shocking true stories involving sex, money, murder – or a fatal cocktail of all three. Told through in-depth interviews, reenactments and archival footage, each hour-long episode delves into an edgy mystery filled with expert detective work, unexpected turns and stunning revelations.

Border Wars is an American documentary television series on the National Geographic Channel. The program follows agents of the U.S. Border Patrol, U.S. Customs and Border Protection, Immigration and Customs Enforcement, and other divisions of the Department of Homeland Security as they investigate and apprehend illegal aliens, drug smugglers, and other criminals violating immigration to the United States and customs laws. The series also follows Air Interdiction Agents, and Marine Interdiction Agents who patrol along the U.S.-Mexico border, as well as southern Florida and Puerto Rico.

Alaska is known for its great beauty and inspirational landscapes. However, it is equally as notorious for its rugged terrain, brutal winters and remote locations. Still, like everywhere, life goes on in Alaska throughout the dead of winter. Everyday tasks often become extraordinary challenges. But, with the help of colossal equipment and machines, residents are able to not only endure, but thrive and enjoy among the sub-zero temperatures, steep mountainous terrain and fragile–sometimes deadly–ice. New Science Channel series Alaska Mega Machines examines the science behind how these machines are engineered for survival in the last frontier.

Journalist Fiona Bruce teams up with art expert Philip Mould to investigate the provenance or attribution of notable artworks.

Documentary revealing the weird and wonderful stories of some of the natural world’s most incredible parents.

The breathtaking landscapes and spectacular wildlife of some of Britain’s most iconic National Parks, seen through the eyes of people who know them best

ExplorerPaulRoseexploresthePennineWay,Britain’sfirstnationaltrail,asitcelebratesits50thbirthday.

A weekly helping of topical satire, funny takes on the week’s top stories and Canada-wide adventures.

Follow single people with disabilities as they sign up to a dating agency in order to find a partner.

A Cleveland grandfather is brought to trial in Israel, accused of being the infamous Nazi death camp guard known as Ivan the Terrible.

American Ninja Warrior is a sports entertainment competition spin-off of the television series Sasuke. The series began on December 12, 2009, in Los Angeles, with the top 10 competitors moving on to compete at “Mt. Midoriyama” in Japan. American Ninja Warrior succeeded G4’s American Ninja Challenge as the qualifying route for Americans to enter Sasuke. Beginning with the fourth season in 2012, regional finalists and wild card competitors competed on an identical Mt. Midoriyama course in Las Vegas rather than traveling to Japan to compete on Sasuke. NBC announced in September 2013 that it would air a special USA versus Japan series later that year wherein top American and Japanese competitors would go head-to-head on the Las Vegas Mt. Midoriyama course.

The fifth season of American Ninja Warrior premiered on June 30, 2013 on G4.