Who killed JonBenét? It’s one of the most enduring American mysteries. Revisit the homicide that gripped the nation, with exclusive interviews and never-before-seen footage from the crime scene.

The Discovery Channel’s Shark Week, first broadcast on July 17, 1987, is a weeklong series of feature television programs dedicated to sharks. Held annually, normally in July or August, Shark Week was originally developed to raise awareness and respect for sharks. It is the longest-running cable television programming event in history. Now broadcast in over 72 countries, Shark Week is promoted heavily via social networks like Facebook and Twitter.

Kenny and Spenny are two best friends who compete against each other. Their competitions are ridiculous, immature and totally intense.

Explore compelling cases that have gone cold for years, chronicling the journeys of the detectives who reopened them. The detectives relive the events of the crimes, reveal new twists and startling revelations, relying on breakthroughs in forensic technology and the influence of social media to help crack these cases.

Sons of Guns is a reality television series that airs on the Discovery Channel. The series centers on Red Jacket Firearms LLC, a Louisiana-based business that manufactures and sells custom weapons. Will Hayden is the founder and owner of the shop, while his daughter and business partner Stephanie manages the office.

As on the Discovery Channel series MythBusters, this show practices a degree of self-censorship and safety-consciousness. Each episode begins with a staff member warning viewers not to try anything demonstrated on the show at home. In addition, during scenes of catastrophic failure, the crew will remind the audience not to try anything at home. The program also makes a noted point to avoid showing specific detail of how weapon modifications or fabrications are performed.

Fishing is a hard life, and harder with bluefin stocks depleted. In Gloucester, Massachusetts, there’s a special breed of fishermen. For generations they’ve used rod and reel to catch the elusive bluefin tuna. They depend on these fish for their livelihood, and the competition is brutal. Over the next 10 weeks, the most skilled fishermen will set out in the frigid waters of the North Atlantic in hopes of catching the valuable bluefin tuna. When one bluefin can bring in as much as $20,000—they’ll do whatever it takes to hook up.

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Award winning journalist Paula Zahn unravels shocking crimes interviewing those closest to the case including lawyers, the victim’s family, detectives and the convicted murderer themselves.

Jeff Schwarz, the owner of a large liquidation house, works seven days a week following leads and tips that could bring him to the next big buy. Back at the shop, his crew works to make room for the new merchandise by finding buyers for the old.

A nostalgic throwback to the original series where TV celebrities blended athleticism with hilarious antics. The 10-episode summer event pits teams of current and classic TV stars from multiple eras and different genres against one another in a variety of athletic games.

Although these twins share the same genes, they will never share the same jeans as living together was more tolerable when they just shared a womb. The free-spirited, vegan-loving, live-and-let-live lifestyle of Brie and Bryan has always clashed with the fancy panache of the designer handbag-loving Nikki and the meticulously organized tendencies of John. However, when the four world-renowned WWE Superstars move in under one roof, the comical clash of titans rings all throughout the suburbs of Tampa, Fla.