6.55 Engineering: Root Locus

7.20 Weekend Outlook

(to 7.25)

9.30 Subtitle Slot: Sex Education: Life Begins

9.50 Pages from Ceefax

10.40 Mindstretchers: Solutions Bypass
Classes work on routes for the bypass, and demonstrate solutions in various ways. With Feroza Syal

10.45 Pages from Ceefax

11.22 Computer Club: The Computer and the Water Engineer

The Comhill Insurance Test Series
England v Australia from Headlingley Second day
PETER WEST introduces coverage of this morning's play.

12.30 Start Up Your Own Business: Opening Doors
Researching the market and developing a sales strategy can be difficult and thankless tasks.
A BBC/Open University production

12.55 Physics Demonstrations for Schools: 3: The Origin of X-ray Spectra
After their discovery by Rontgen, Mosely found that X-rays carry information about the inner regions of an atom's cloud of electrons, and gave the first measurement of nuclear charge.
A BBC/Open University production

1.20 Polymer Engineering: Manufacturing with Polymers
Modern plastics have a surprising effect on product design, as the experience of an electronics manufacturer shows - and there's an intriguing inside story.
A BBC/Open University production

1.45 Pages from Ceefax

2.0 Scene: Football Fans Abroad
Three times this season, Mrs Thatcher has said she is ashamed to be British as a result of English fans' behaviour. This film follows a group of Everton fans abroad. What happened? What are their views about fan behaviour abroad? And what do the Continental fans think of the English?

Cricket: First Test
The Comhill Insurance Test Series
England v Australia
Further coverage of the second day
International Tennis The Stella Artois Championship from the Queen's Club Live coverage of this afternoon's quarter-final matches. Sunday's winner will take home over £25,000. Introduced by BARRY DAVIES Commentators
DAN MASKELL , JOHN BARRETT
GERALD WILLIAMS
Television presentation:
Tennis jim RESIDE and HUW JONES

Presented by Professor Heinz Wolff
This week's programme starts well but has a rather strange ending. It takes place inside three large cardboard boxes! The teams are attempting to make photograph-in-three-minute machines. Their subject is the studio audience, who are rendered speechless by the quality of the results - well, they say a picture is worth a thousand words. Heinz, on the other hand, is never lost for words, and with the help of an infra-red camera he reveals all.
Guest judge Brian Coe Director JULIE HARRUP Producer CHARLES HUFF

Tonga
For King and Country
The Kingdom of Tonga won a romantic place in the British imagination 30 years ago when its monarch, Queen Salote, paraded at the coronation of Britain's own Queen in London.
On that day a popular legend was bom: a British daydream of a palm-fringed kingdom where an island people, untouched by progress and materialism, lived in simple harmony under the wise and benevolent rule of the Polynesian Royal Family. But Tonga today - the real Tonga - is a troubled place. Michael Dean examines the tensions and contradictions of this Pacific kingdom. Producer MERATA MITA
Series editor ANTHONY ISAACS

from Wimbome Minster, Dorset with Geoff Hamilton and Clay Jones
A pergola decked in roses, a rockery and a pool with waterfalls - sounds like a big garden, but it's not.
Lys de Bray has managed to fill her small, less than one-sixth of an acre plot with a wide range of different habitats supporting a collection of wild flowers and rare and unusual plants which she uses as a library for her acclaimed botanical illustrations.
Executive producer JOHN KENYON Production assistant JANE DON Producer DENIS W. GARTSIDE BBC Pebble Mill
(Plant list on Ceefax page 261)

The BBC International
Sheepdog Championship Introduced by Phil Drabble and Eric HalsaU
First semi-final
The 1984 Welsh National
Champion and the reigning
English Shepherds Champion meet on the trials course at
Chatsworth for a place in the Singles Final. For Wales:
JACK BURKE from Powys with Hemp
For England:
JOHN THOMAS from
Colesboume with Don
The Brace Championship begins today when the handler runs two dogs with each receiving its own set of commands.
For Scotland:
JOHN MACLEOD with Ben HI and Cap
For Ireland:
JOHN BREEN with Matty and Judy
Technical co-ordinator STEVE WHTTAKER
Director MICHAEL KERR Producer IAN SMITH

starring
Plague of Locusts
Each year competing law firms descend on the school to recruit top students into summer jobs. James Hart finds himself in great demand from prospective employers ... but should he go with the highest bidder or a firm that would provide the broadest work experience? It's a difficult choice that is made no easier by Connie's decision to take a complete break from the law.
Written by JOHN JAY OSBORN JR Directed by JOSEPH PEVNEY

John Tusa , Peter Snow and Donald MacCormick with Jenni Murray and Ian Smith present the reports and interviews that matter with the analysis that counts.

The Comhill Insurance Test Series
England v Australia from Headingley
RICHIE BENAUD introduces highlights of the second day's play.
Executive producer NICK HUNTER

Concluding the prize-winning series from Australia 4: Lo-Ama
1981. Ann Cutler 's life changes dramatically when she discovers that she is half Aborigine. Anne resentfully rejects her father for deceiving her, but she cannot bring herself to face her mother.
Written by HYLLUS MARIS and SONIA BORG
Produced by BOB WEIS
Directed by GOEFFREY NOTTAGE