6.25 Ecology: Coypu
6.50 Ceremony and the Citizen
7.15 King Frederick and Voltaire
7.40 Topology: Complex Loci
8.5 Conflict in the Family
8.30 Energy and Rockets
8.55 The Real World
9.20 Maths: Taylor Polynomials
9.45 20th-century Poetry: W. B. Yeats
10.10 Ring of Steel
10.35 Chemistry: Pure Organic Compounds
11.0 Photochemistry: Vision
11.25 Chemical Equilibrium
11.50 Biology: Allostery
12.15 Lightning Does Strike Twice!
12.40 Brazil: Fuelling the Miracle
1.5 Materials Engineering
1.30 Maths: Catenary Approximation

Introduced by David Icke
2.0*
International Tennis
The Stella Artois Championships from the Queen's Club, London
Nearly £19,000 goes to the winner of this afternoon's final but that will be the last thing the two players will be considering.
For the last two years the winner of this title has gone on to be Wimbledon Champion, so victory today may create a real psychological advantage in three weeks' time. It certainly was last summer for JIMMY CONNORS , but this year he has both JOHN MCENROE and IVAN LENDL to contend with. 2.40*
Cricket
The John Player League
A further round of the popular 40-overs-a-side competition, for which the total prize money this year is more than £62,000. Commentators
CHRISTOPHER MARTIN-JENKINS and PETER WALKER
2 55*
Athletics
The Dorma Challenge 1983 LOUGHBOROUGH UNIVERSITY V
ENGLAND SELECT
The highlight of this afternoon's meeting should be the 800 metres, where SEBASTIAN COE runs for the university. In the sprints ALLAN WELLS renews his Brisbane rivalry with England's MIKE MCFARLANE. Commentators
RON PICKERING and STUART STOREY
4.40
International Football from Sydney
Australia v England
Highlights of the first of England's three matches ' down under'. On their last visit to Sydney in 1980, England won 2-1, but the Aussies have enlisted the advice of former England manager RON GREENWOOD. *The above timings indicate only the first of several transmissions. Television presentation:
Tennis JOHNNIE WATHERSTON , JOHN PHILIPS Cricket BOB DUNCAN
Athletics JOHN SHREWSBURY
FOOtball CHANNEL 7, AUSTRALIA
Studio director CAMPBELL FERGUSON Assistant editor JOHN ROWLINSON
Producer Grandstand MARTIN HOPKINS Editor Grandstand MIKE MURPHY

A digest of the news of the week and other world matters of interest seen by news cameras around the world: the interesting, the picturesque, the important and the dramatic, plus a visual commentary for those who cannot hear. with Jan Leeming
Editor FRED HOLTUH

Beyond the Edge
From the precipices of St Kilda, the sheer walls of Moher in Ireland to the low, crumbling slopes of East Anglia, the sea cliffs of the British Isles embellish an already spectacularly varied coast-line.
But the dramatic results of this confrontation between land and sea concern more than just the scenery.
On remote beaches isolated by headlands and towering cliffs, clinging to ledges and in secret caves warmed by the sea, plants and animals find a natural haven. Beyond the edge of the land in these unfenced natural reserves grow wild asparagus and tree mallow and other plants more at home abroad; goats and bats find refuge and the aerobatic chough, soaring buzzard, black-cloaked raven and rapacious peregrine breed undisturbed.
Narrated by BARRY PAINE
Film editor COLIN CRADOCK
Produced by ROGER r. JONES Series editors
PETER JONES
ANTHONY ISAACS BBC Bristol

with Jan Leeming Weather

Ken Rosewall v Cliff Richey
Wimbledon Quarter-final 1971 ' A truly great match.'

The world-renowned Welsh tenor in a programme of popular songs, ballads and operatic arias.
His guest for the final programme is Elizabeth Gale
BBC Welsh Symphony Orchestra leader DESMOND BRADLEY conducted by Robin Stapleton Accompanist John Constable
Lighting TONY ESCOTT Sound HARRY THOMAS
Designer GERALD MURPHY
Producer J. MERVYN WILLIAMS
Director ANDREW QUICK. BBC Wales

by R. F. DELDERFIELD
Winner of the Broadcasting Press Guild Television Award for the Best Serial.
Dramatised in 13 parts by ANDREW DAVIES , starring
John Duttine , Frank Middlemass Alan MacNaughtan
10: Completing the file he has compiled on David, Alcock presents it to the Board of Governors. They must make a difficult decision.
Cast in order of appearance:
Music composed by KENYON EMRYS -ROBERTS Producer KEN RIDDINGTON Director TERENCE DUDLEY
* Subtitles on Ceefax page 270

The Formula One
World Championship Canadian Grand Prix
From the street circuit of Detroit last week to the Gilles Villeneuve track in Canada today for round eight of the World Championship. The Brabham team of NELSON PIQUET and RICCARDO PATRESE scored a notable one-two victory here 12 months ago and Brazilian Piquet, the 1981 World Champion, is looking good again this year. Commentators
MURRAY WALKER and JAMES HUNT
Television presentation by CBC Producer ROGER MOODY

starring Joanne Woodward
Martin Balsam , Sylvia Sidney
Rita Walden is chic and attractive, seemingly happily married and yet strangely dissatisfied. When her mother dies suddenly, her husband suggests a trip to Europe in an attempt to resolve the crisis in their marriage. It is a trip that will traumatically affect their lives. Both Joanne Woodward and Sylvia Sidney received Oscar nominations for their roles.
Screenplay by STEWART STERN Produced by JACK BRODSKY Directed by GILBERT CATES