The Discovery Channel HDTV (East) (DSCHD)

Newly unsealed records from a Victorian madhouse finally reveal Jack the Ripper's identity. Potential Yeti DNA gives clues about the mysterious beast. The shocking interruption of a live broadcast by a masked man has the world asking about Max Headroom. (Repeat).

Duane recruits treasure hunter Josh Feldman, who recommends a new plan of action to find the Aztec gold. But before they can break ground, a local Timpanogos tribal elder visits the ranch with disturbing words of warning. (Repeat).

Desert bunkers in Tunisia block Allied victory in Africa, the pride of one Alabama community is born out of a harsh reality, a Lebanese complex is rocked by a massive explosion, and the remains of an elite institution still stand in Greece. (Repeat).

Ivar's training takes a turn, leading him to question if getting in the ring is worth the potential harm. Lil Show and Hot Rod begin to make peace. Comedian Wendi performs at a local venue where Pinky and Syko spend a tense last night together. (Repeat).

Parker strikes gold in Bolivia at a location that could be the next Klondike. With time running out on his prospect, Parker faces a big decision. (Repeat).

Rick Ness talks about his early days of gold mining while working with Parker. (Repeat).

Tony Beets takes a gambit on his new operation strategy, while Rick Ness follows a hunch. Fred Lewis' crew struggles with outdated equipment, while Dave Turin starts prospecting in a new location. (Repeat).

Officers get intelligence on a passenger heading to London carrying an illicit load. When questioned, the man says he's meeting with the legendary Braveheart. A shipment of high-end construction equipment throws up red flags when its quality looks shoddy. (Repeat).

Intel arrives, sending officers searching for two suspected narcotics smugglers flying in from London. Agriculture specialists get more than they bargained for when a passenger lands with some illegal and foul-smelling items. (Repeat).

A K9 scents illegal contents within luggage belonging to a preacher and his wife. To everyone's surprise, the wife admits to having cocaine in her bag. Officers question a Brazilian man who arrives with two plastic dolls stuffed with white crystals. (Repeat).

While officers inspect a cargo shipment for illegal marijuana, an X-ray reveals some lewd contents. A colorful character attracts officers' attention for bringing medications they suspect he intends to sell at a popular alternative lifestyle festival. (Repeat).

Air cargo officers investigate a drug-smuggling operation that uses the postal service to export marijuana abroad. When vials of a mysterious powder arrive from China, officers suspect they may be dangerous counterfeit clinical skincare injections. (Repeat).

Officers inspect an old computer that looks like it's hiding something suspicious. A man entering with a commercial amount of Betta fish claims he's importing them for personal use, although the species is often bred for illegal fish fighting. (Repeat).

The Raneys find a Montana homestead struggling through food, predator and power problems. Marty and Matt reunite themwith old firefighter squad mates who help consolidate and build out a couple's homestead for safety and accessibility. (Repeat).

Marty faces his most daunting challenge ever in the rescue of a Tennessee homestead. Down Misty and Matt, he calls on past homesteaders and friends Ken and Anita Corsini, a husband and wife HGTV home renovation team. (Repeat).

The Raneys help homesteaders in Texas who dream of saving kill horses; Misty builds a duck pond and garden, while Marty works on a horse barn and Matt on a storm shelter. (Repeat).