The first self-made series of programs on Discovery Channel lasted for three years, spanning all parts of North America, from the Canadian tundra with sub-zero temperature to the tropical rain forest in Panama, showing that the survival of the fittest is an unchangeable law of nature under the treacherous terrain and harsh climate.

2. National Geographic: Rivers and Life Series

This documentary, from the National Geographic Documentary Channel, introduces the six most famous rivers in the world: Amazon River, Nile River, Mississippi River, Ganges River, Yangtze River and Rhine River, looking for the source, history and changes of these rivers.

3. Beautiful China

This is the first joint production of China Central Television (CCTV) and British Broadcasting Corporation (BBC). Starting from the land of fragrant rice in the south of the Yangtze River, the film reaches the extremely hot Xishuangbanna rainforest, the extremely cold Mount Everest, the Great Wall, the symbol of China, the Yellow River Basin, the birthplace of Chinese culture, and the winding coastline of 6,543,800 kilometers.

4. The power of the earth

This documentary, also known as "Autobiography of the Earth", was filmed and produced by the BBC team for three years and traveled all over the world to explore the process and reasons of the evolution of the Earth in the past 4.5 billion years. The narrator of the documentary, Dr. ian stewart, is a famous British geographer. He will tell us the story of the earth in detail, explain it in simple terms, and interspersed with live demonstrations by real people.

5. "China in the air"

This documentary, produced by CCTV, overlooks the land of China from the air for the first time. The helicopter 16 and 57 unmanned aerial vehicles were used, with a total journey of about150,000 km, showing the historical and cultural landscape and natural geographical features of China in an all-round and three-dimensional way.