With Dr Alan Unterman.

Presented by Anna Hill.

With James Naughtie and Carolyn Quinn.
6.25,7.25,8.25 Sports News
6.45 Yesterday in Parliament
With David Wilby and Rachel Hooper.
7.48 Thought for the Day With the Rt Rev Tom Butler.
8.31 L Wanly Yesterday in Parliament

New series 1/6. Jonathan Freedland returns with the series that looks for the past behind the present. exploring a moment in history that illuminates a contemporary debate. He starts with a look at the Conservative Party leadership contest. Political pundits have been concerned with predicting whether the Tories will avoid what some have perceived as the problems in the leadership contests of 1997, 2001 and 2003. But
Freedland and his guests look even further back at Tory leadership contests of old for parallels with today's situation. Producer Julia Adamson Repeated at 9.30pm

3/5. Urunana is a radio soap modelled on The Archers that is broadcast in Rwanda, where 11 per cent of the People are HIV-positive. The programme tackles taboo sexual-health issues and works to build peace and reconciliation after the genocide of 1994, when radio was used to whip up hatred. Now Urunana's enormous
Popularity has restored Rwandans' respect for the media. Adam Lusekelo investigates, producer Ruth Evans

4/9. What's in a Name? Taxonomy has a claim to be one of the oldest professions, since, in Genesis, God told Adam to give names to all the animals. But Paul Evans finds that many species have had their identity crises in the past. Repeated from yesterday at 9pm

2/2. After taking London by storm in the 1880s, British musicals soon began touring the USA and Europe to great acclaim. After the First World War, however, the Americans began to produce their own musical comedies, with big production numbers and high-energy performance that left the gentler British productions rather in the shade. Could
British composers and lyricists find a way of reclaiming the genre, or was the future of musical comedy a predominantly American one? Presented by Ned Sherrin. Producer Libby cross

Topical consumer affairs reports, with Winifred Robinson and Peter White. Including at 12.30 Call You and Yours. PHONE: [number removed]0444 Lines open from 10am

Presented by Nick Clarke.

New series 1/4. The story of Puccini's Madama Butterfly is an outrageous scandal. A visiting naval officer procures a 15-year-old local Japanese girl for what is little more than casual sex on a long-term contract. She becomes pregnant and, with the connivance of the diplomatic service, the baby is removed from the care of its mother, resulting in her suicide. In the first of a new series,
Huw Edwards finds that this shocking story has its basis in truth, and that Puccini's "willow-patterned" image of Japan ignored the birth of a new superpower and the struggle for a new world order. Producer Paul Evans Rptd on Saturday at 3.30pm

Repeated from yesterday at 7pm

By the award-winning writer Charlotte Jones. Does a solitary wave really exist? Or does each breaking wave contain within its sound the echo of the last wave and the promise of the next?
Producer/Director Claire Grove

13/13. Richard Daniel discusses listeners' questions about the environment and the developing world, producer Nick Patrick ADDRESS: [address removed]email: home.planet@bbc.co.uk Phone: [number removed]

2/5. Mind the Gap. By award-winning novelist Pat Barker , this story explores a young British Muslim boy's experience of travelling from Yorkshire to London to watch the cricket with his father. His excitement turns to fear as he gets caught up in the enormous mass of people travelling on the Underground. Read by Ace Bhatti. For details see yesterday

12/90. The Spice Trade. In the 16th century, trading with the East was a difficult and dangerous business. Continuing Christopher Lee 's account of Britain's empire-building. Narrated by Juliet Stevenson. Readings by Rob Brydon , Anna Massey and Martin Freeman. For details see yesterday

11/13. A look at the world of business, money and technology, with Heather Payton and guests. Producer Caroline Bayley

The intelligent guide to the world of learning, with Libby Purves. Producer Sukey Firth Repeated on Sunday at 11pm

News and analysis, with Eddie Mair.

4/4. In his final bid to improve mankind, Satan takes control of the media. And a deadly enemy tries to take control of Hell. Comedy drama by Andy Hamilton.
With Geoffrey Whitehead , Hugh Dennis , Tony Maudsley , Felicity Montagu and Philip Pope Producer Paul Mayhew-Archer

Clarrie does the decent thing.
For cast see page 38 Repeated tomorrow at 2pm

Arts show, With Mark LawSOn. Producer Philippa Ritchie

2/5. Questions, Questions. William's indifference to Margaret's blogging takes a new turn when he finally realises the nature of its content. By Andy Barrett. For cast and details see yesterday Repeated from 10.45am

New series 1/10. Under streamlined extradition procedures, it is intended that terrorist suspects should meet speedy justice. But critics complain that the new law is a recipe for future miscarriages of justice. Gerry Northam investigates. Producer Ian Muir-Cochrane Repeated on Sunday at 5pm

News of interest to blind and partially sighted people, presented by Peter White. Producer Cheryl Gabriel

6/8. Tired All the Time. Feeling tired all the time is now such a common symptom that TATT has become an acronym. In most cases, standard tests for anaemia, thyroid problems or diabetes will identify the cause; but other conditions may be overlooked. Dr Mark Porter investigates how much we really understand about ME, or chronic fatigue syndrome. Producer Paula McGrath Repeated tomorrow at 4.30pm

Repeated from 9am

Presented by Robin Lustig.

2/10. Strange goings-on at the vicarage are the subject of an unsympathetic investigation. Meanwhile, the young Conan Doyle gets married. By Julian Barnes. For details see yesterday

2/3. Actor, mimic and film buff Michael Roberts gives his idiosyncratic take on Hollywood in a series of comedy lectures. He is joined by a glittering array of celebrated film stars. Most of them dead.... and all of them trying to take Over the Show. Producer Frank Stirling

A round-up of the day's events at Westminster. Presented by David Wilby.

2/5. By Alan Bennett. Repeated from 9.45am

My Muslim Family