The Truth About Female Desire (C4)

The World's Most Photographed (BBC2)

RESEARCH scientist Erick Janssen, from the Kinsey Institute, declared himself "very excited" by the study. That wasn't the point really as the experiment aimed to discover how a social prop like alcohol loosened the inhibitions and increased the libido of not men, but women.

Kaz and Andrea were the two volunteers taking part. First they watched porn clips while sober, then again after downing a couple of Sea Breezes. It's a hard life being a sexual guinea-pig - lying around drinking and watching dirty movies.

Their reaction was measured using an old-fashioned, hand-operated lever and a probe in an intimate place. The conclusion was that women are hornier with a drink inside them. "No surprise there," said the narrator. Exactly. The programme, one of four being shown nightly this week, seemed intent on stating the obvious.

Did we need an experiment to tell us that how a woman's sexual arousal depends on a balance between excitement and inhibition, with factors such as religious background, restrictive behaviour and worries about being thought easy coming into play?.

That all seems fairly obvious, although Hannah's ring finger taught me something. The length of this digit relates to the amount of testosterone you're exposed to in the womb. Her long finger was an indication of a high level of excitability.

Somewhere between preview tape and transmission the title changed from Single Girl Sex Lab to The Truth About Female Desire, presumably to make it sound more serious. This shows unusual restraint from a channel that gives us shows called The Sperminator and Foetus Snatcher.

We're used to politicians employing pictures in the press as part of the spin cycle, although these days they're more likely to be posing with pop stars than babies. I'd never thought of Gandhi using the media in that way as he waged a peaceful war against colonial oppression in India.

The latest fascinating edition of The World's Most Photographed told how he took on the British with non-violent resistance, fasting, prayer and the photo opportunity.

Despite his humble image, he was a master of media manipulation. The change in his own image was illustrated by two pictures, taken 30 years apart in the same London photographic studio. In 1906, Gandhi was a newly-qualified barrister who had the appearance of a professional western gentleman. The second picture from the 1930s depicts the familiar figure in a loincloth that most people remember.

American photographer Margaret Bourke-White captured haunting images of him at the spinning wheel, despite his refusal to pose and not allowing her to use flash.

Even in death, pictures of his funeral made the front pages. The famous shot of the burning funeral pyre surrounded by thousands of mourning Indians was achieved by French photographer Henri Cartier-Bresson by passing his camera to someone with a higher vantage point. The pictures were published all over the world.