Quest HD Wednesday

A look at how to make Parmesan cheese, and the key to keeping the runways operating at the world's busiest airports. Plus, manufacturing reclining chairs

At a windswept Cornish hilltop farm Henry Cole and Sam Lovegrove find cars, tractors and a very rare German scooter

The team takes on a smashed piggybank, a homemade gramophone that has lost its voice and a tarnished 19th-century German ceremonial helmet

Mike Wolfe and Frank Fritz travel all over America in search of the most interesting, rare and profit-bringing treasures, from old bangers to classic toys

The guys unearth ultra-rare skis for a Model T Ford as they pick one of the biggest barns they've ever seen

Wayne's all-original 1954 Studebaker Commander Starliner Coupe is invited to compete in a prestigious car show. And, he gambles on a 1938 Lincoln Model K Coupe

Drew Pritchard and Turbo Pickers' Paul Cowland spot a classic Golf GTI at a film props company and, in Suffolk, unearth an early 1970s Lotus Elan that needs radical restoration

An insight into large-scale iron-mining operations in the Australian Outback. Plus, how the world's biggest wave machine is used for flood defences

A look at the development of the finest oyster knives, and the lights transforming sport worldwide. Plus, how diamonds grown in a greenhouse are behind a gemstone revolution

A look at how to build a port ready to receive the world's biggest container ships, and how 28 million plastic bags are made every day

An insight into how the world's most expensive vinegar is made, how divers keep dry and warm in the freezing ocean, and how to build a plane that can fly upside down

Drew Pritchard heads to the Malvern Hills, where he unearths one of his most unusual finds. Plus, he visits a famed stone mason's in Liverpool to examine rare artisan carvings

Henry and Sam look around an incredible Americana collection in Cornwall. After examining an array of classic motors, Sam springs a big surprise on Henry

Henry and Sam are invited to look around the workshops of the National Motorcycle Museum. The guys consider bidding on a 1926 Ariel and a 1927 BSA

Simon O'Brien and Henry Cole visit Witney in Oxfordshire, where Henry comes across a tractor that has not run for quite a few years - but poses no problem for restorer Alan

Michael and Maria restore a mechanical peacock for Drew. Elsewhere, Saxon asks Nick to use his artistic skills to rescue a battered but historic pub sign

Mike has gone all nostalgic, buying a 58-year-old Dormobile campervan, but Elvis has a huge amount of work to do on it, including a brand-new engine fit

A broken excavator shuts down the Ferals' operation. Jacqui finds the biggest nugget of her career, while the Poseidon Crew uncover a rubbish tip.

Modern day treasure hunter Drew Pritchard travels the length and breadth of the UK in search of weird and wonderful objects

Angus uncovers a loft stashed with bizarre but highly valuable collectables. Plus, a set of rare stamps deliver a big cash windfall at auction

Jay Blades and the team restore three more family heirlooms, taking on a much-loved teddy bear, an unusual instrument with a music hall past and a tea caddy that is a century old

How to blow the world's finest crystal, make the slimmest TVs, heat the deepest swimming pool, and fill a million bottles a day of the world's favourite ketchup

How to brew the oldest beer in the western world, stitch the historic airman's bomber, and forge a set of jaws that can chomp through concrete and demolish tower blocks

Mike Brewer enlists mechanic Edd China's help to restore an AMC Pacer. However, a strict budget means their ideas for the 1970s hatchback will need to be credible as well as costed

Extreme engineer Jimmy de Ville visits the UK on the hunt for the Rolls-Royce Viper engine that powers military jets across the globe

Wayne's all-original 1954 Studebaker Commander Starliner Coupe is invited to compete in a prestigious car show. And, he gambles on a 1938 Lincoln Model K Coupe

The team sets out to help a man who dreams about having a Honda with all the extras

The manufacturing processes behind the production of life casts, cooker hoods, compression hosiery and electric motorcycles

Revealing how items such as sidecars, frozen French toast, refrigerator compressors and superchargers are made

Buying goods from home

Buying goods from home

A look at ways to weave an authentic Turkish carpet, and how helicopter blade technology is being used to make cross country skis. Plus, the practicalities behind the Niagara Falls

In the New Forest, Henry Cole and Sam Lovegrove meet Stumpie, an Americana fanatic whose sheds are full of rare bicycles, classic sportsters and pimped-up saloon cars