Two sample programmes from next year's undergraduate calendar.

12.30 Design and Innovation: Gallium Arsenide - Pulled from Obscurity
Will gallium arsenide replace silicon for the 'chip'? It's faster, it can resist radiation and heat, and it can convert digital signals directly to light. This programme looks at the role played by the inventor, the product champion and industry in the world of semi-conductor electronics and the development of gallium arsenide.

12.55 Communication and Education: Talking to the Tea Folk
Why use midget-men with northern accents to sell tea? People from the world of advertising explain the construction of a 30-second television advertisement.