With Mark Oakley.

Presented by Miriam O'Reilly.

With Martha Kearney and James Naughtie.
6.25, 7.25, 8.25 Sports News
7.48 Thought for the Day With Dr Mona Siddiqui.

Bel Mooney and her guest, Professor Christopher Frayling , Rector of the Royal College of Art, explore the territory between belief and unbelief.
(Repeated at 9.30pm)

4: British Hit Singles. Simon Fanshawe dusts down his old 45s and strolls through the soundtrack of his life as he turns the pages of the Guinness Book of British Hit Singles. The publication, now annually updated, was founded by brothers Tim and Jo Rice , Paul Gambaccini and Mike Read 25 years ago, and the "hitparade" is itself celebrating its half century this year. Producer Mark Smalley

With Sheila McLennon.
10.45 Mothers of Invention Part 2 of this week's drama. Drama repeated 7.45pm

The pitfalls of life on a remote island off the north Wales coast begin to sink in for the Barnden family, as Libby and her daughters find themselves stranded on the mainland by bad weather. Over on the island, as the weeks drag by and the chances of a boat making the crossing don't seem to improve, David faces depleting stocks of food and the start of lambing. Sian Pari Huws continues the story of the castaways of Bardsey.

Groucho Marx has influenced actor Michael Roberts's own life and career, and his bizarre family seemed to mirror the crazy antics of the Marx Brothers' films.
This influence has led Roberts to portray Groucho on stage in A Night in the Ukraine and on radio in three series of the hugely successful remake of the Marx Brothers' 1930s comedy Flywheel, Shyster and Flywheel. This is Roberts' own perspective on the life and career of Groucho Marx, marking the 25th anniversary of his death with rare archive recordings and witticisms from his own rendition of Groucho.

With Liz Barclay and Peter White.
Including at 12.30 Call You and Yours. Phone: [number removed] Lines open from 10am

With Nick Clarke.

In 1619 the first African slaves arrived at Jamestown, Virginia in the English Colonies, now the USA. They were dispossessed of everything by their white slave masters, except the memories and culture of their homeland -the music, religion and ceremony. In the first of three programmes singer-songwriter Mal Pope traces how these elements combined with British Christian hymnody to form the basis of modern gospel music. Producer Paul Evans

Repeated from yesterday 7pm

By Beatrice Colin.
On a small Scottish island in the 1950s, identical twins Rose and Lily are forced to come to terms with a long-concealed secret.

Richard Daniel presents the programme in which listeners follow up their environmental concerns.
Producer Nick Patrick Write to: [address removed] E-mail: home.planet@bbc.co.uk Phone: [number removed]

2: Theresa's World by Celia Bryce. Theresa is called special and treated like a child by grown-ups, but this summer she reveals hidden strengths. Read by lestyn Jones. For details see yesterday

2: What Is Tea? Andrew Jefford continues his training in the Japanese "Way of Tea" by examining the plant itself. How is this member of the camellia family processed and what chemical reactions does it undergo as it is transformed into the perfect cuppa? For details see Monday

Heather Payton and guests with conversation about the world of business, money and workplace issues. Producers Rozina Breen and Rosamund Jones

Actress and composer Mia Soteriou and awardwinningjazz singer Stacey Kent join Rosie Boycott to talk about three of their favourite paperbacks. Producer Viv Beeby Repeated Sunday llpm

With Clare English and Eddie Mair.

Meet Giles Wemmbley Hogg , upper middle-class investigator of cultural diversity. 6: This week Giles goes off to ... Thailand. Written and conceived by Marcus Brigstocke and Jeremy Salsby with additional material by Graeme Garden.
Producer David Tyler

Honeysuckle Cottage goes up for sale.
Rptd tomorrow 2pm

With Rosie Goldsmith. Producer Ekene Akalawu

By Jerome Vincent. 2: Josephine G Cochran. In the face of her husband's hostility, Cochran patented the first automatic dishwasher in 1886. For details see yesterday Repeat of 10.45am

Conclusion of the series analysing changing loyalties and identities of overseas Asians worldwide.
Communities of the diaspora have begun to flex their political muscles. From the Asian Americans in Washington to the dispersion of Chinese political dissidents, JaitinderVerma assesses their influence, both in their adopted countries and their ancestral homes. Producers Linda Pressly , Allison Puranik Rptd Sun 5pm

Peter White with news for visually impaired people. Producer Ian Macrae Phone: [number removed] E-mail: intouch@bbc.co.uk

Aviation Medicine. This week's programme takes to the airfor an investigation into health and flying. Dr Graham Easton offers advice on how to make sure you 're fit to fly. And find out why medics dread hearing: "If there is a doctor on board, please make yourself known to the cabin crew."
Producer Paula McGrath E-mail: radioscience@bbc.co.uk Repeated Wednesday 4.30pm
Take the fear out of flying: page 34

Repeated from 9.00am

With Robin Lustig.

By Andrew Miller. 2: An American in Paris waves a gun about at a dinner party. For details see yesterday

Robin and Wendy swap the glamour of model-making in Stevenage fora weekend at the Edinburgh Festival. Egged on by their German model-making chum
Heinrich, they decide to set up a hobbies website.
Imagine plunging into all the delights of the festivals legal and illegal. Now imagine doing it with your aunt and uncle. Starring Simon Greenall and Kay Stonham. Producer Mario Stylianides

The Truth about Sheep. The Cumbrian view of their OVine population. Producer Caz Graham

Part 2. Repeated from 9.45am