Yesterday TV Guide

How air-breathing mammals have found remarkable ways to overcome the many challenges of a life in water, from freshwater jungle ponds to the dark depths of the open ocean. Featuring footage of the birth of a huge sperm whale calf, never-before-filmed orca hunting behaviour, and coastal coyotes in Mexico that have learnt they can benefit from the daily offerings washed up on the shore with each new tide

From ice-covered seas to snow-capped mountains, mammals have conquered the cold, living in the harshest places on earth thanks to their remarkable intelligence and adaptations. The programme features polar bears on the Arctic islands of Svalbard, arctic foxes in Canada's Hudson Bay, and snow leopards in the lofty mountains of the Qinghai-Tibet Plateau in China

Fletch discovers fellow inmates at Slade Prison are planning an escape over Christmas - and is so convinced the bid is doomed to fail that he takes refuge in the hospital so he cannot be blamed when the tunnel is found. Festive edition of the classic comedy from 1975, starring Ronnie Barker and Richard Beckinsale

Fletch plans to bring a bit of Christmas spirit to Slade Prison in the form of his own home-made booze. But when Mackay and Barrowclough uncover the stash in his and Godber's cell, the crafty con seems in danger of spending the yuletide period in solitary confinement. Festive edition of the classic comedy from 1976, starring Ronnie Barker and Fulton Mackay

Among David Attenborough's life-long passions are birds of paradise, which he has tracked all over the jungles of New Guinea to film their beautiful and often bizarre displays. In this documentary, he examines how and why these creatures have captivated explorers, naturalists, artists, film-makers and even royalty, investigating the myths surrounding their discovery 500 years ago, the latest extraordinary behaviour captured on camera and the science behind their beauty. He also travels to a state-of-the art facility in Qatar that houses the largest breeding group of these birds in the world

David Attenborough has a passion for birds' eggs, which protect the young from the outside world at the same time as allowing them to breathe and are strong enough to withstand the full weight of an incubating parent and weak enough to allow a chick to break free. In this documentary, the broadcaster reveals the secrets of birds' eggs from creation to hatching, exploring how they are made, the reasons behind their shape and their intrinsic purpose