6.5 Maths Modelling: Bicycles
6.30 Sociology: Principles of Caste
6.55 What Value Nuclear Protests?
7.20 Understanding Space and Time
7.45 Vinyl Chloride Production

The Dubai International from Hickstead
Further coverage of the first day of the first meeting of the year, this time featuring a speed class with the fastest clear round being the winner. Commentators
RAYMOND BROOKS-WARD
STEPHEN HADLEY

helps you plan your weekend by previewing daytime programmes of special interest from the Open University.
Producer ANN POINTON
A BBC/Open University production

Marshall Aid was a massive infusion of American money into Europe from 1947 onwards. A close look at the political strings attached to it.
Producer KEN PATTON
A BBC/Open University production

with subtitles, followed by Weather

Street Musique
A lively visual interpretation of the music played by a group of street entertainers.
Directed by RYAN LARKIN for the NATIONAL FILM BOARD OF CANADA

starring
George O'Brien , Virginia Vale
Former US Marshal Cliff Mason arrives in Mesa City and finds the town terrorised by an outlaw gang and the town's sheriff. 'You're the one man who can make this a civilised place to live in', says the pretty school-teacher. So the marshal decides to do just that....
Screenplay by JACK LAIT JR Produced by BERT GILROY Directed by DAVID HOWARD

The Montreux Golden Rose Pop Festival (BBC1 last Monday), Status Quo's farewell concert and the new single by Frankie Goes to Hollywood are among the topics.
Robin Denselow's guests include Noddy Holder of Slade, Billy Bragg and Tom Robinson.

A 13-part history of the United States written, narrated by Alistair Cooke 6: Gone West
From a cave in Kentucky once occupied by Daniel Boone to the California of the Gold Rush; ALISTAIR COOKE follows the route of the early pioneers.
When Cooke's talking about the wagon-ruts of the forty-niners, he's standing beside them. Whatever he talks about, he's on the spot. It seems so natural only because Cooke has complete mental possession of the visited territory. (OBSERVER)
Directed by TIM SLESSOR
Produced by MICHAEL GILL

'You have five seconds in which to summarise the plot of Verdi's Aida' poses musical Chairman Steve Race of John Amis who partners Frank Muir against
Ian Wallace and Denis Norden
Television presentation DOUGLAS HESPE

from Barnsdale with Geoff Hamilton and Clay Jones June, and it's time to plant out those tender vegetables: courgettes, runner beans, cucumbers and outdoor tomatoes, while annual bedding in the 'starting from scratch' garden will add a welcome splash of colour.
With the number of garden chemicals increasing almost daily, Stefan Buczacki from the National Vegetable Research Station joins the team and advises on a simple approach to finding the right chemicals from this agrochemical maze.
Have you ever tried to fan train a peach tree? Geoff Hamilton demonstrates the correct technique using simple-to-follow instructions.
Production assistant JEAN LAUGHTON Executive producer JOHN KENYON Producer DENIS W. GARTSIDE BBC Pebble Mill

A six-part comedy serial starring
4: To atone for committing murder, Martinson becomes the first ascetic executive of Empire Industries. Meanwhile Cromwell, working on his maxim that suspicion is the key to efficiency, uses the Lapidus deal to stir up feuding board members.
Written by GEORGE ZATEOLO Directed by TERRY HUGHES

An 11-part television history of Britain at work in the 20th century. 8: Scientific Change
Though the risk of poison gas, acid spills and explosions was always present, pay was high in the chemical industry and there were few disputes. Chemical workers tell a human success story, as well as a technical and commercial one. The out-dated Victorian heavy chemical industry managed to modernise itself after 1914. Strong new companies were formed and caught up with Germany and America. What was their secret?
Music by CARL DAVIS
Videotape editor CHRIS BOOTH Film editor JOHN NASH
Assistant producer ROGER PARRY Producer ANGELA HOLDSWORTH
Executive producer PETER PAGNAMENTA

(La prise du pouvoir par Louis XIV) The feature film by ROBERTO ROSSELLINI starring Jean-Marie Patte Raymond Jourdan
The great Cardinal Mazarin , the power behind the French throne, is dying. His final advice to young play-boy King Louis XIV is to take over the reins of the government himself. Louis sets about his personal revolution with unexpected skill and resolution. Rossellini's compelling study of political manipulation - as relevant today as in the 17th century - was hailed as a masterpiece when shown in London last year.
Written by JEAN GRUAULT and JEAN.DOMINIQUE DE LA ROCHEFOUCAULD Directed by ROBERTO ROSSEWNI