Quest HD Saturday

Air power is very important in war, but requires infrastructure such as airfields that limit where it can be used. How did naval solutions help overcome this problem?

Highlights of all the action from the British Superbike Championships.

Mike Brewer finds a Mazda coupe that appears to have nothing wrong with it, so he decides to give expert mechanic Edd China the task of making a good car even better

Mike and Elvis take on a Porsche 911 in rough shape. If they can revive it, they will take it on an epic drive through the Cairngorms

Mike Brewer bags a bargain example of one of his dream cars - a Ford Fiesta XR2 - but there is only £1,000 to spend on repairs

Mike finds the perfect starter classic, a 1989 Audi Coupe. This rare car has a low mileage, but it's failed its MOT. The guys fix it up before a test drive in Cornwall

Mike Brewer finds a budget Nissan Skyline supercar and Edd China sets about transforming it into a home-made drift racer

Mike spots a bargain supercar, a Maserati 4200GT, for under £10,000. Under the hood is a Ferrari V8, but Elvis must try and fix the potentially costly gearbox and clutch issues

Grace rides the new EV sports bike to see if it can tempt her away from her traditional petrol bike. Karun gets an exclusive drive of the world's first EV GT race car

In the south of France, Vicki celebrates 60 years of the Ford Mustang. Plus, Jason pits the Ferrari 296 GTB against the McLaren 750S

Drew takes fellow dealer Viki to some of the types of hunting ground which have helped to shape his unique take on decorative salvage and antiques

Drew and Alister hunt for pieces inspired by nature, from a folk-art bird's head walking stick in Brighton to a fireside tiger in Shropshire

Drew Pritchard finds a mysterious piece of black pottery in Lancashire, locates an exotic piece in a zoo in East Anglia and fiercely haggles with an old foe in a salvage yard

Drew Pritchard heads to a country house sale in Norfolk, and in Glasgow finds a unique tartan piece at a classic tailor's. Plus, he finds his oddest buy ever in Liverpool

Drew is surprised by the items he picks up at a quirky shop in County Durham. Later, he must give up his hat to secure a deal on two extraordinarily rare items

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

Henry and Fuzz visit Stephen, a diehard biker with a shed full of rare Czech and Japanese bikes, vintage cans, and motoring curios

Henry and Fuzz head to Southend to visit Graham's shed full of bikes and muscle cars. They find a Dutton kit car and rows and rows of rare bikes

Alan and Salty head to wine country to chase a gold rush legend, a drought threatens to end the season for Shane and Kate

After missing the mark to connect their shafts underground, the Mifsuds call on their kids for help. Ray finally gets decent sapphires out of his new claim

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

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

The interventions of the Security and Customs Services at the borders of Spain, whose staff are under the constant threat from drugs, weapons, and suspected terrorists

The interventions of the Security and Customs Services at the borders of Spain, whose staff are under the constant threat from drugs, weapons, and suspected terrorists

The making of enchiladas, turbochargers and watches

Developments in the manufacture of patterned glass panels and road cases, and how stop-frame animated films are made

How gel caps, playground spring riders, frozen pancakes and natural rubber are made

A look at how paper umbrellas, coal, aircraft seats and cremation urns are made

Buying goods from home

Buying goods from home

The twins ride the Redball Express, while Bruce Crompton blows up a van with Second World War rifle grenades and tracks down a 'Deuce-and-a-half' American army truck