Discovery Channel Friday

The manufacture of inflatable safety devices, Braille typewriters and carbon-fibre cellos, and how their production processes have changed over the years

The manufacturing processes behind carbon-fibre masts, fortune cookies, Imax projectors and roller chains

Pete Nelson uses a silver maple as the base for a cedar-shingled structure with a curved turret two storeys high and a deck with views of Lake Chelan in Washington State

Pete Nelson designs a treetop party pad for a pair of sisters and their husbands in Omaha, Nebraska, delivering a fantasy castle including a copper-capped turret

Parker pivots to test a shaker deck. However, his inability to pull the trigger leads him to question the viability of his new Alaska operation

Parker considers a major pivot: building his own custom plant for the Alaska claim. Tyler and Jeff prospect for gold nuggets in New Zealand's richest river

A family builds their dream home overlooking the Atlantic Ocean, while pro snowboarder Sean Busby and his wife build a home with amazing views of Glacier National Park

After their property was destroyed by fire, family members build a mammoth cabin along Idaho's Salmon River. They are forced to deal with extreme weather and wildlife

A baby klipspringer is born on one of the coldest nights of the season and needs to be nursed back to health. Gorilla Joanne turns five years old

The Safari Park team release a group of burrowing owls into the wild. A hamadryas baboon searches for a mate, but the keepers may need to help

How toilet paper is produced from trees, the making of absinthe and how cricket balls are made tough enough to face test match batsmen

The production of insulin from a loaf of bread, the manufacture of rigging for ships and how green salad is cultivated on scorching desert planes

The construction of the world's most powerful locomotive, how cows' milk is turned into clotted cream, and the crafting of a boomerang from a piece of wood

A look at how sardines are fished and processed. Plus, the manufacture of ejector seats and Piaggio scooters

In Wyoming's Black Hills, Marty's back to help the Black family after their success is threatened by huge issues and intensifying bad weather

Freddy and Juan race to fix a miner's Franken-built wash plant and save the legacy he is fighting to create for his grandson in Arizona.

Freddy and Juan check on the miners they once rescued to see who's thriving, who's sliding, and who's cashing in big as gold prices soar.

Recent sightings of a massive bird send Phil and Heather into western Pennsylvania to hunt the mythical Thunderbird and uncover its legendary secrets.

Andrew Bustamante conducts a full-scale investigation into Jeffrey Epstein's death, recreating the crime scene as he seeks proof of suicide, murder or something darker.

Part one of two. Phil and Jess join Josh Gates at a decaying mental hospital in Detroit. They investigate the reported spirits that threaten those who dare to enter

Follows the interventions of the Security and Customs Services at the borders of Spain who are under the constant threat from drugs, weapons, and suspected terrorists.

Follows the interventions of the Security and Customs Services at the borders of Spain who are under the constant threat from drugs, weapons, and suspected terrorists.

Recent sightings of a massive bird send Phil and Heather into western Pennsylvania to hunt the mythical Thunderbird and uncover its legendary secrets.

Andrew Bustamante conducts a full-scale investigation into Jeffrey Epstein's death, recreating the crime scene as he seeks proof of suicide, murder or something darker.

Shawn clears the ice on his gold-rich inland claim to reduce summertime mud. A crew fight sidelines Vern's lucrative run. Chris makes a risky wager

Mark and Digger hit a snag while transporting Tennessee water to Popcorn's North Carolina still site. Mark and Huck use their feet to make fortified wine

Buying goods from home

Buying goods from home

Amazing animal facts, including how sea turtles navigate their way home, why sloths turn green and how diving beetles spend so long underwater

Do mosquitos prefer the taste of some people over others? How can snakes hear if they have no ears? How do millions of birds fly as one?