David Attenborough recounts some of his timeless moments exploring the natural world with BBC Studios’ dedicated Natural History Unit. From his first major series Zoo Quest in 1954 to the amazing advances in technology that have made shows like The Green Planet possible.

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Following the closure of numerous amateur stations, the BBC starts its first daily radio service in London. After much argument, news is supplied by an agency, and music drama and “talks” fill the airwaves for only a few hours a day. It isn’t long before radio is heard across the nation. This black and white footage from 1922 is silent.