Channel 4 The Sex Life of Twins (2008)

There are few objects as compelling or iconic as the Great Wall of China and this feature length drama doc takes on this monumental subject with typical style and scale of ambition. Recently shown on Channel 4 this 1.45min film traces the story of the building of the wall in its latest, greatest guise the colossal brick structure that everyone recognizes as the Wall, from the terror of apocalyptic Mongol attacks in 1550 the Ming dynasty’s own 9/11 - through the founding of the nation s first professional army to the building of the wall itself and its testing in battle.

With access to the first nationwide survey and state-of-the-art drones mapping the Great Wall of China, this documentary offers new evidence that reveals its extraordinary magnitude, rewrites its millennia-long history and decodes its complex signals system. Using cutting-edge chemistry, the programme also finds out what has kept the wall standing for so long - a simple cooking ingredient found in kitchens across the world.

Living through one of the most tumultuous periods of Chinese and world history, Puyi, the last Emperor of China, was both a participant in, and victim of, his times. In 1908, aged only two, Puyi ascended the throne at the Forbidden City in Beijing as Qing Emperor of China. At six, rebellions forced his abdication but he continued to live at the palace surrounded by women and eunuchs. At 13 he started to learn of the wider world from his British teacher Reginald Johnston.

The discovery of China's Terracotta Army in 1974 captured the imagination of the world. But that first dig only revealed a fraction of this enormous and extraordinary treasure. Since then, scientists have resumed work on the site, and their research has turned up a series of new discoveries about the warriors and the people who made them over two millennia ago. With exclusive access to pioneering research conducted by UCL and the Terracotta Army Museum, this documentary reveals those new secrets.

Sue Johnston narrates a look at the life and career of the actor, the star of Only Fools and Horses, The Darling Buds of May, A Touch of Frost and Open All Hours. The programme examines his early stage career and hear what his fellow thespians thought of him, and there are clips of him in long-forgotten shows

Sex reassignment surgery is now almost a commonplace procedure, but back in the early 20th century, it was seen as 'science fiction surgery'. When the news broke of a successful first attempt, it was a sensation. This is the gripping story of three extraordinary people: the world's first person to undergo a female to male transition; the former Spitfire pilot who became Britain's first to transition from male to female; and the daring advanced plastic surgeon who carried out these surgeries in the 1940s.

Channel 4 presents a series of documentaries exploring the dark reality of the adult film industry.

Embrace your desires with confidence and embark on your own unique path toward life-changing pleasure with this guide to cultivating the sex life of your dreams.