David Ogilvy

It's all happening on BBC4 at the moment. Not only with the excellent Mad Men, but also with a series of cracking documentaries about various aspects of advertising. The most recent programme was a biopic of the great David Ogilvy that, while focusing a little too much on his colourful private life, was a fascinating insight into one of the true giants of the business.

And here, from 1977, is an entertaining and illuminating interview with the man himself. It's almost an hour long - so make sure you're sitting comfortably.