Life in Colour (BBC1/HD in 4K on BBC iPlayer | 7:00pm to 8:00pm | Sunday 28th February 2021) ** PICK OF THE WEEK **

David Attenborough explores the many ways animals use colour, with cameras built specifically for this series revealing a world normally invisible to human eyes. The peacock’s tail has evolved entirely to impress females and is one of the most extreme colour ornaments in the natural world, while mandrill baboons signal their strength and status with striking red and blue face masks, the brighter the colours, the higher ranking the male.

The Architecture The Railways Built (Yesterday | 8:00pm to 9:00pm | Tuesday 2nd March 2021)

Tim visits Sheffield station, which been reinvented for the 21st century. He also helps to restore the Bennerley Viaduct in the Erewash valley.

Everest: The Deadliest Mountain (Channel 5/HD | 10:00pm to 11:00pm | Tuesday 2nd March 2021)

The stories of mountaineers who have reached the summit of the world’s tallest mountain, including a look at the dangers of the low oxygen levels at high altitudes. The programme examines the factors that allowed Edmund Hillary and Tenzing Norgay’s 1953 expedition to succeed where so many had failed, and reveals how the Sherpas, who work as porters and guides for expeditions, have a physiology uniquely adapted to surviving at high altitudes.

Kate Humble’s Coastal Walks (Channel 5/HD | 8:00pm to 9:00pm | Friday 5th March 2021)

Starting in Dorset on Stonebarrow Hill, the naturalist walks a 13-mile stretch of the South West Coast Path. Her first stop is at Charmouth, a place well-known for fossil hunting, where local girl Mary Anning found an ichthyosaur in the early 19th century. At Lyme Regis, Kate discovers the lengths and costs engineers have gone to in order to protect the town, before visiting a local mill listed in the Doomsday Book. After a spell bird spotting in the Seaton Wetlands, Kate enjoys a tour of the area’s limestone mines before making her way to Beer Point, which boasts wonderful views of the sea.

All TV guide information taken from DigiGuide — www.getdigiguide.tv/?p=1&r=15119.