QUEST HD

Round 1: Oulton Park. Highlights of all the action from Round 1 of the British Superbike Championships at Oulton Park.

How do they put the holes in Swiss cheese? How do they restore and improve a classic battle tank? And how do robotic librarians run one of the world's biggest book collections.

How do they persuade an oyster to grow a perfect pearl? How do they put the twist in classic Pennsylvania pretzels? And how do they build Venice's traditional gondolas.

Mike finds a rare rust-free model of Japan's answer to Britain's MGB GT. Edd must swap the sluggish auto for manual transmission to try and turn a profit.

Mike sources a VW 181 Thing from a collector, but is forced to dig deep for the purchase, meaning there isn't much left in the kitty for Edd to refurbish it.

In Rotherham, a shed rammed with cars includes a rare Renault Juvaquatre van - can Henry and Fuzz revive this quirky classic and make it pay.

Find out how handcuffs, caulking and joint compound, and propane tanks are produced, as more everyday items are put under the microscope.

Find out how fur coats, hearses, outdoor lighting fixtures and golf tees are made, as more everyday items are put under the microscope.

Leather expert Martin and engineer Bo restore a Victorian dentist's chair. Taxidermist Chris uses unusual techniques to revive a Victorian heron.

Modern-day treasure hunter Drew Pritchard is preparing for a business launch at London's Liberty, where he needs to create a first-class showroom.

Drew visits a warehouse in York, finds a black beetle at a garage in Cambridgeshire and an antiques dealer in Suffolk has a delightful model castle.

The Poseidon Crew finally start digging legendary ground in search of a multi-million-dollar nugget. Shane and Russell endure the snake-ridden wilderness in Pilbara.

A robbery at the Gold Retrievers' camp puts more pressure on Chris and Brad's partnership. Marcus and Linden finally hit a rich patch of nuggets.

Deep in the heart of the Australian Outback lie some of the largest gems on the planet. Passionate teams take big risks to hunt down these elusive treasures.

The Richardsons hunt for fresh sapphire grounds. Will this big gamble pay off? Lost underground, the Mifsuds have a radical solution. Ray and Paul enter a danger zone.

Mike wants a G Wagen - the popular German four-by-four. He finds one and Edd gives it a facelift, with a 2012 front end and rear lights. Will they land a big profit.

In Derbyshire, Henry and Fuzz visit Rob's haven of classic and rare bikes. They explore his collection of 1960s Lambretta scooters and 1920s 'flat tankers'.

In Lincolnshire, Henry and Fuzz trawl through Dave's eclectic mix of military, classic and agricultural items. What will they come away with.

The duo explore Shane's epic collection, where a stylish Lanchester LD10 catches their eye - a perfect fit for their love of post-war British cars.

In Tiverton, Henry Cole uncovers some tarnished scales and an original Lambretta scooter. Simon O'Brien wants to revive a bland table and a petrol gauge.

Angus attempts to find new homes for the beloved belongings of a departed father. Then, he helps a widow clear her late-husband's collection.

Angus finds thousands of comics that's one man's obsession, but his wife wants them gone. Plus, a man's poor health forces him to give up his passion for timepieces.

Anita Manning and David Harper hunt for bargain antiques in Yorkshire and County Durham. A novelty cigarette lighter sparks David's interest.

Antiques experts Anita Manning and David Harper search for bargain items in Northumberland. Anita uncovers a gramophone, a picnic set and a silver flower holder.

Chris and Francis try to make up lost time following lengthy wheel problems, but leaky brakes and a 12-tonne jigsaw stand in their way.

In Rotherham, a shed rammed with cars includes a rare Renault Juvaquatre van - can Henry and Fuzz revive this quirky classic and make it pay.

Japanese scientists stimulate oysters to form perfect pearls. Handcrafted pretzels are made with a twist. Workers maintain the craft of the gondolier.

Roulette wheels are made to be perfectly unpredictable. The secrets behind the purest olive oil are revealed. An old wreck is made into the Batmobile.