The fourth series begins with the nation’s favourite detective, the mercurial Sherlock Holmes, back once more on British soil, as Doctor Watson and his wife, Mary, prepare for their biggest ever challenge - becoming parents for the first time.

John and Lestrade try to move on with their lives after Sherlock's apparent death. However, Anderson believes he is still alive.

In a huge submarine canyon in California's Monterey Bay, there is an illuminating twilight zone. It is a world of countless exotic creatures, including sparkling jellyfish and deep sea fish that give off flashes. Using an ultra-high sensitivity 4K camera specifically developed for deep sea filming, together with experts in the field, Lights in the Abyss captures bioluminescent creatures in their natural habitat, deep in the Pacific Ocean.

Brian Cox教授带我们用物理学揭开种种宇宙奇迹的奥秘，阐释人类和宇宙的深邃联系。茫茫宇宙，人类从何而来？宇宙又将走向何处？带着万千的疑问，我们跟随Brian Cox教授一起感受地球上罕见的景观，在这些壮丽的景观背后，隐藏着宇宙的秘密……让我们在欣赏美景的同时，深入了解物理学，逐渐揭开宇宙各种奇迹的神秘面纱，明了了人类与宇宙的深邃联系。 阳光帅哥Brian Cox是一位粒子物理学家，曼彻斯特大学高能物理学教授，英国皇家学会会员，也是瑞士欧洲核物理研究组织(CERN)之大型强子对撞器(LHC)的六大实验参与者之一。但他的成名却是由于近年来常常出现在是BBC科普节目中。BBC曾播出他主持的科教节目的Wonders of the Solar System（《BBC:太阳系的奇迹》）。

It is no wonder that we are mesmerized by mountains, are afraid of them and are obsessed by them. They evoke wildness in all of us, and yet still they remain a world of secrets. With one programme each on the Rocky Mountains, the Andes and Himalaya, this series will use drones to reveal these mountains as never before. The audience will be taken from hidden valleys to unknown peaks and they will feel the vertigo, cold and sense of wonder that these great ranges evoke. This landmark three-part series on the iconic ranges of the world will show how the mountains mould the lives of the extraordinary animals and the remote peoples that live there and how these great ranges create weather systems that rule our planet.

The story of the short life, and brutal gang rape and murder in Delhi in December 2012 of an exceptional and inspiring young woman. The rape of the 23 year old medical student by 6 men on a moving bus, and her death, sparked unprecedented protests and riots throughout India and led to the first glimmers of a change of mindset. Interwoven into the story line are the lives, values and mindsets of the rapists whom the film makers have had exclusive and unprecedented access to interview before they hang. The film examines the society and values which spawn such violent acts, and makes an optimistic and impassioned plea for change.