The Secret of Skinwalker Ranch

The cart comes way before the horse in the reality series "Married at First Sight." Based on a hit Danish format, "Married..." features people who agree to participate in an extreme experiment: Each covenants legal marriage with a complete stranger. Specialists -- including a spiritualist, a relationship coach and a sociologist -- use scientific matchmaking methods to determine each couple, who will not have met or had contact with each other until the wedding day. The series then documents the relationships, including honeymoons and other relatable events of married life. After several weeks, each couple must decide whether to remain together or go their individual ways.

Paranormal investigator Zak Bagans and his crew, Nick Groff and Aaron Goodwin, search for haunted locations both domestically and internationally. During their investigations, Zak and crew acquaint themselves with the general area; interview locals about the hauntings; and go face-to-face with the evil spirits who reportedly haunt these locations.

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.

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.

What started in 1975 with the disappearance of 20 people from a small town in Oregon, ended in 1997 with the largest suicide on US soil and changed the face of modern New Age religion forever. This four-part docuseries uses never-before-seen footage and first-person accounts to explore the infamous UFO cult that shocked the nation with their out-of-this-world beliefs.

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.

Set in Central Michigan's farm country, this reality series follows the work done at Pol Veterinary Services. Specializing in large farm animals, Dr. Pol treats horses, pigs, cows, sheep, alpacas, goats, chickens and even an occasional reindeer. The program also features Dr. Brenda Grettenberger, who has worked with Dr. Pol since 1992.

In this harrowing reality series, “Survivorman” Les Stroud travels to far-flung locales with little more than the clothes on his back and 50 pounds of camera equipment to battle - and try to survive - insanely harsh conditions.