6.40 Kinetics of Fast Reactions

7.5 At the Frontier

7.30 Economic Forecasting

A programme for Asian women
Director STEPHANIE SILK
Producer ASHOK RAMPALK BBC Birmingham

4 50 Purification of an Enzyme

5.15 Weights, Measures and Statistics

5.40 Design Strategies

6.5 The Surface of Mars

6.30 Leeds

Mexican Madness
The story of the Rio Balsas Power Boat Marathon
The State of Guerrero is one of the most arid and beautiful in Mexico. Once a year the canyons and the river are shattered by the roar of power boats.
Visiting crews from all over the world send their 600 hp jet boats snarling down the rapids at 70 miles an hour. Some leap over the rocks; some slam into them and sink: £4,000-worth of boat lost in a few seconds. The 400-mile race lasts five days and passes through rapids and canyons, lakes and open sea...
The Rio Balsas is much more than just a river race - it is a journey through Mexico.
Producer RICHARD robinsoh Qpries editors
MICHAEL ANDREWS and ANTHONY ISAACS

including a news summary with sub-titles for the hard-of-hearing, followed by Weather

by LEONARD BARRAS starring Roy Kinnear and Henry Livings with Jean Boht
Colin Edwynn and Meg Johnson
The last of six episodes of an entertainment recorded on the stage of The Crucible Theatre, Sheffield.
No Need to Look Smug, By Jove!
In which it is the author's aim to kill everybody off, but he loses his nerve. Fortunately, Mother Nature takes a hand and the useless crew is scrapped after all.
Music by ALEX GLASGOW
Musical director STAN ROOCROFT Designer KEN LAWSON Director PHILIP bedley
Producer TCNY HARRISON. BBC Manchester

Sixth in a series of seven films about artists today. Julio Le Pare
Through his abstract paintings, kinetic machines, and the use of games, cartoons and an Anti-car, LE PARC challenges the accepted Art Gallery Market, which he regards as an elitist system, where one social artistic group has given itself the power to decide whats best for everyone else.
He takes his art on to the streets to have a direct contact with the Public and hopes many will follow him.
Photography JOHN ELSE. Sound JOHN MURRHY Executive producers
JULIA CAVE and BARRIE GAVIN
Director john HOOPER

A further visit by television cameras to the popular radio quiz featuring
Frank Muir , John Amis
Ian Wallace and Denis Norden with questions set by Steve Race
Television presentation DOUGLAS HESPE

The European Community Youth Orchestra
Conducted by Claudio Abbado and Edward Heath . Soloists Maurizio Pollini (piano) Dietrich Fischer-Dieskau
(speaker) „
Live from the SFB Concert Hall, Berlin
Each year the European Community Youth Orchestra (founded in 1978) brings together some of the best young orchestral musicians in the EEC. They spend the summer rehearsing and performing in major cities throughout
Europe. This year 124 players have been selected by competition in each of the nine member states.
Tonight's concert comes from Berlin where they are conducted by their Musical Director CLAUDIO ABBADO and by their President
THE RT HON EDWARD HEATH , MP
Beethoven Prometheus Overture; Piano Concerto No 4 in G Schoenberg
A Survivor from Warsaw
Stravinsky Firebird Suite (1919) THE EUROPEAN COMMUNITY YOUTH ORCHESTRA
With the WIENER JEUNESSE-CHOR Introduced by MICHAEL BERKELEY Directed for ZDF by HUGO kach

from Zurich Weltklasse
After the IAAF Dubai Golden Mile and Sebastian Coe's new world record, the IAAF Dubai Golden Sprints are the focal points of this meeting which is recognised as one of Europe's major events.
Allan Wells and Mike McFarlane from Great Britain take on the top 100m and 200m runners in the world.
Plus, of course, a full programme of top-class athletics.
Commentators DAVID COLEMAN
RON PICKERING and STUART STOREY
Television presentation by the SWISS TELEVISION SERVICE

Weather

ANNA MASSEY reads
The Forlorn Sea by STEVIE smith