1830 is the official date of the founding of the Royal Geographical Society. Next Monday the society celebrates its 150th anniversary - greatly changed from its early dining-club image. Expeditions still set off to the ' far corners of the earth ' backed by the RGS, but their aims are rigorous, scientific investigations often with a potential economic spin-off, rather than the somewhat dilettante affairs of 150 years ago.
Written by Barry Carman. Presented by Duncan Carse with Edward Kelsey, Bruce Bennett and Douglas Blackwell. Producer Geoffrey Sherlock. (Repeated: Sat 10.15 pm) long wave only