Sky HistoryHD

Passengers are searched for illegal objects when entering and leaving the United States by the Department of Homeland Security's Customs and Border Protection officers.

Passengers are searched for illegal objects when entering and leaving the United States by the Department of Homeland Security's Customs and Border Protection officers.

Brandon and Lori go for the gold - but find something even better.

Sean enters one of the most unusual, big money auctions yet, Scott and Jesse go head to head, Brandon and Lori take a risk and Papa Bear goes all in.

It's wheels up for Papa Bear when he takes a gamble on a mysterious covered item.

Does Big Bear mean Big Money? The Alvarados get sneaky while Desert Dan horses around, and frustration gets the best of Brandori.

Mike restores a 1971 Super Bee, struggles to sell cars and hunts for a new place to live.

The Aztecs turn children into elite warriors, training them in combat, strategy and rituals designed to strike fear into their enemies.

Rick and Corey assess a camera said to have filmed Elvis Presley, while Chumlee examines a mysterious fossil.

Henry Cole visits a farm sale and comes away with a vintage tractor. However, he comes to regret their decision.

You Win Some, You Luge Some: Indio, California proves to be extremely interesting for Dave. Brandi and Jarrod find the ultimate stash, while Mary's locker misfires.

Mary bumps into some vintage art, Ivy adds to his stamp collection and Kenny once again faces his fears.

A teenager sees a mushroom-shaped object appear in the field while feeding his sheep in 1971. In 2000, police officers in Illinois chase a triangular UFO the size of a house.

Brandon and Lori go for the gold - but find something even better.

Sean enters one of the most unusual, big money auctions yet, Scott and Jesse go head to head, Brandon and Lori take a risk and Papa Bear goes all in.

It's wheels up for Papa Bear when he takes a gamble on a mysterious covered item.

Does Big Bear mean Big Money? The Alvarados get sneaky while Desert Dan horses around, and frustration gets the best of Brandori.

Brandon goes out on a limb and finds himself sinking in quicksand with no help from Lori. Will Desert Dan lend him a hand.

Scott and Chrissy's last hurrah. Brandon and Lori win the big prize, but it turns out all that glitters is not gold.

Rick considers purchasing an outfit allegedly worn by rock legend Alice Cooper. Meanwhile, Chumlee evaluates a 7-foot-tall Deadpool PEZ dispenser.

Henry Cole heads solo to an automobilia and vintage toy auction, before his team regroups and heads to Newark autojumble.

The Gambler returns to form in Huntington Beach. Rene gets on everyone's bad side, while Ivy's prospects are cloudy at best.

Rene is shocked by what he finds. Darrell's locker multiplies his investment, and Ivy tests his radar on the best.

Follow Guy Walters and Justine into Germany's Nazi gold legends, from Merkers Mine to the Alps, chasing myths and buried Second World War secrets.

Part 2: Ten survivalists battle the Arctic Circle for $500,000. A costly mistake threatens one contender, while another chases a game-changing prize.

When an early handheld video game system comes into play, Corey tries his utmost to make a deal.

A Guns N' Roses-mad collector box rocks into the shop. Will Corey end up in Paradise City or out in the cold November rain.

Rick and Chum kick it with a rare pair of Pumas from 1968. Plus, the gang are stunned by some of Marie Curie's lab notes and a Post Malone guitar.

Chum chases a lead on a 1963 Fiat Microcar. Meanwhile, Rick and Corey make a wager on a set of billiard balls and Rick examines the holy grail of coins.

Mike tries his hand at pole dancing, while Robbie and Jersey uncover a bonanza of antique signs from the New York subway.

Test of the Best: Top champions return to face a new challenge that is unlike any they have encountered before: competing against one of the expert judges.

Exploding Whale, Alligator Attack, Dallas Airshow Disaster and Ski Lift Mayhem: Tony Harris breaks down the most shocking moments ever caught on camera.

Part 2: Ten survivalists battle the Arctic Circle for $500,000. A costly mistake threatens one contender, while another chases a game-changing prize.

Check out a mythical sculpture unearthed by an Indian tsunami, a 12th-century temple in quake-prone Mexico and a sunken ship in Utah's Great Salt Lake.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico.