TV Guide BBC Two Wednesday

The finalists travel to Athens, Greece, where they are set three challenges designed to broaden their culinary horizons like never before. For starters, they prepare a lunch for locals, including a selection of dishes chosen by TV chef Agiro Barbarigou. Day two sees the amateurs working in the kitchen of Michelin-starred restaurant Patio, mentored by executive chef Panagiotis Giakalis, then finally they are made solely responsible for service at a VIP dinner at the Akti restaurant, cooking for Agiro, Panagiotis and more of Athens' leading chefs

Final week continues with the four hopefuls asked to put their twist on a classic dish, with choices including beef Wellington, Sunday roast and a full English breakfast. Then the best three move on to the Chef's Table, where they prepare lunch for Alain Ducasse at his Dorchester Hotel restaurant in Mayfair, as well as four of his protégés - Tom Kitchin, Clare Smyth, Claude Bosi and Alex Dilling

A programme focusing on forensic journalism from all corners of the world by BBC Eye, the World Service's critically acclaimed investigative unit, and featuring expert global correspondents getting to the heart of the biggest international stories

Experts Margie Cooper and Ishy Khan are joined by 1990s Gladiators Diane 'Jet' Youdale and James 'Hunter' Crossley to shop around Lancashire. In Eccleston, Diane uncovers a unique sculptural piece, while in Longridge, James bags a buy that reminds him of his beloved dog

Over three rounds, contestants Hannah, John, Helen and Vince vie to find the single 'unbeatable' answer and streak ahead of the rest to make the final where they can win a cash prize. General knowledge quiz, hosted by Jason Manford

Northern Ireland chefs Colin McSherry, Lottie Noren, NIall Sarhan and Melissa McCabe cook canapes, starters and fish dishes inspired by the Olympics and Paralympics. One of the chefs cooks a courgette-based dish resembling a shot-put for a starter, while the fish dishes are a classical French surf and turf of hake and braised beef shin, monkfish with a fusion of Asian tastes and trout served two ways

A journey along America's West coast. The programme examines how the landscape is shaped by the Pacific Ocean as well as powerful forces beneath ground, particularly along the San Andreas Fault. The programme also visits the warm and sheltered waters of the Sea of Cortez, where animals including blue whales gather, and discovers how a small community in America's westernmost point have a unique relationship with grey whales

Theoretical physicist Jim Al-Khalili goes on a journey through 600 million years of evolution to uncover how the human brain, the most complex structure known of in the universe, came to exist. With some 100 billion neurons and more than 100 trillion connections, the human brain is one of nature's greatest achievements. But how did something so incredibly sophisticated evolve from the simplest beginnings?