6.45 Baby Talk
7.35 Exploring Frequency Space
8.00 Education: After the Act
8.25 Geometric Topology

Mike Amatt and guest say Hallo Again with songs, games and play ideas. Musician IAN SMITH
Directors FAY WOOLF. BFUAN JAMESON Series producer
BARBARA RODDAM (R)

HRH The Princess of Wales drops the flag at precisely 9.30 this morning to start a record number of runners in this year's Mars London Marathon.

Approximately 25,000 will set out to run, jog or partly walk the 26 miles 385 yards from Greenwich Park to Westminster via the famous tea clipper Cutty Sark, over Tower Bridge and through the rejuvenated London Docks.

Eighty years ago the marathon was first run over this precise distance - then it was from Windsor to the White City Stadium in the Olympic Games of 1908. Today's top athletes like Hugh Jones and Charlie Spedding, both previous winners, are running not only to win but also for a place in the British Olympic team. Once again Norway's Ingrid Kristiansen looks set to be the first woman home with an enormous financial bonus if she is the first to break two hours 20 minutes. Live coverage of the whole race with commentary from David Coleman, Ron Pickering and Brendan Foster with additional reports on the route from Stuart Storey and Bob Wilson.

For You Are All One in Christ Jesus
Linda Mary Evans joins
Rose and Stewart Carruthers at their home in Haddington, East Lothian, for a simple service of prayer and reflection.
Readings: John 1, vv 6-13 Galatians 3, vv 23-29
Producer MICHAEL A. SIMPSON
Series producer HELEN ALEXANDER BBC Scotland

This second episode of the Mars London Marathon concentrates on the more lighthearted side of the race.

Barnwell - 'a Royal Farm' HRH Prince Richard, the Duke of Gloucester, farms 2,600 acres in Northamptonshire. Of all the royal farms and estates Barnwell probably comes nearest to the realities of modern commercial farming. With no money from the civil list the farm has to pay its way. Reporter Les Cottington
Film cameraman STEVE SAUNDERSON Film editor ALISON RUFF Producer MIKE DERBY BBC Pebble Mill

with Vivian White
Starting with News Summary Testing For AIDS
As the number of AIDS sufferers continues to rise, This Week Next Week examines the case for compulsory testing for certain groups and analyses the political implications of such an initiative. Producers
ROSALEEN HUGHES. DAVID ASH Editor JAMES HOGAN

by Juliet Ace and Tony McHale.
"I don't want you near me. I don't want you near Ian. I don't want you in the Square."
(Ceefax subtitles)

A new animated version of the famous children's classic featuring the voices of Vincent Price Coral Browne Mel Blanc
Cloris Leachman Tony Curtis Nancy Olson
Eight-year-old Sparky could think of hundreds of things he'd rather do than practise the piano. But all that changes when one day his old-fashioned upright decides to teach Sparky what it is like to play the piano well.... Written and produced by ALAN w. LIVINGSTON
Directed by LEE MISHKIN

Bill Oddie , Debbie Rix
Billy Butler and this week's star guest reporter answer more of your questions. Call Faxline on [number removed]or write to: Bill Oddie , Fax,
BBCtv, PO Box 173,
Manchester M60 1FA
Designer STEPHEN BRADSHAW Studio director CHRIS SALT Producer ALAN WALSH BBC North West

with Desmond Morris and Sarah Kennedy
Budgies are the most popular household pets in Britain, easily outnumbering dogs or cats. But how can you teach one to talk? And who makes the best teacher? Today, in Yorkshire, Desmond explores the biggest budgie show in the world.
Out on the Dales, Sarah has a date with a gypsy caravan. She meets the ponies which helped to roof Westminster, the pets which could be honorary members of the miners' union and the dogs which bowled over
Freddie Trueman.
From all over the county of the white rose, animal lovers join in a pilgrimage to the place Horace Walpole called 'the sublime palace' - Castle Howard. Research
POLLY PHILLIPS , ALISON FORSYTH Director KATE KINNINMONT Producer IAN CHRISTIE Editor DAVID MARTIN BBC Scotland
*CEEFAX SUBTITLES

Richard Whitmore presents the day's news from home and abroad
Weather BILL GILES

with young Christians from Belfast
'I think they (the churches) are waiting for the kids with the shirts and ties to come up and say, we want to join. I don't think they relate to an awful lot of people who live in the real world.' Paul Jones visits Belfast and meets its youth as they struggle to bring their energies, world and music into the life of the churches today.
0 for a thousand tongues; This is your God (Meekness and Majesty); All the ends of the earth; One bread, one body; Psalm 25: 1 lift up my soul to you; Hosanna; Rejoice'
Musical director WILLIAM THOMPSON Researcher KERENA MARCHANT Producer JAMES SKELLY Editor STEPHEN WHITTLE BBC Northern Ireland
Record and cassette: 'Your Songs of Praise Choice '. Favourite hymns from 'Songs of Pratse' selected by Thora Hird. REQZCM 469from retailers
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starring Grace Kelly Ray Milland
After discovering that his wealthy wife is having an affair with an American crime writer, retired tennis champion Tony Wendice , fearing divorce and disinheritance, plans to kill her - but if he is to come into her fortune it has to be the 'perfect murder'. One of Hitchcock's finest thrillers.
Screenplay by FREDERICK KNOTT from his own play
Produced and directed by ALFRED HITCHCOCK
0 FILMS: page 26
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with Richard Whitmore Weather

Approximately 25,000 people will have a tale to tell after today. Two have been winners, most have completed 26 miles 385 yards through the streets of London and achieved personal ambitions in the Mars London Marathon. This is the story of an amazing day when marathon fever gripped the city.
Commentators DAVID COLEMAN
RON PICKERING. BRENDAN FOSTER Interviews
STUART STOREY. BOB WILSON

written by PENNY CROFT starring Simon Cadell and Carol Royle
With impending fatherhood, Larry throws caution to the wind. and Title music written and sung by PENNY CROFT
Studio sound MARTIN DEANE Studio lighting GEOFF BEECH Designer GARRY FREEMAN Produced and directed by SUSAN BELBIN
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Breaking the Chain
Jeanette Roberts is the mother to 42 children. She is a tough East Ender with little money. She has never married or had children of her own. Her adoptive family are the abused, the neglected, the physically or mentally handicapped, the orphaned or the unacceptable.
Jeanette was abused in her own childhood, but through sheer force of spirit she changed the course of her life. Breaking the Chain describes the positive story of what can be done to heal damaged children and build relationships where all else has failed.
Reporter Jenni Murray Film editor MIKE JACKSON Producer ANGELA KAYE
Everyman editor JANE DRABBLE
0 INFO: page 91

Fourth of eight programmes on making music in a modern rock band.

Presenters Deirdre Cartwright (guitar) Geoff Nicholls (drums) and Alastair Gavin (keyboards) and Henry Thomas (bass) look at soloing and lead vocals.

With comments from Jan Hammer, Tony Banks of Genesis, Midge Ure, Graham Bonnet, and soul singer James Ingham

(R) (e)