8.30 Chemical Reactions: 1
8.55 Industrial Social Systems
9.20 Maths: Complex Series
9.45 Internal Energy
10.10 Open Forum: ou Politics
10.35 Positive Discrimination in Education
11.0 Instrumentation: Numerical Control
11.25 Solving Equations
11.50 Pneumatic Circuits
12.15 Eysenck's Demon
12.40 Geophysical Techniques
1.5 Chicago's Land Use
1.30 Elementary Maths
The John Player League featuring Somerset v Sussex
Few counties have a better crop of young players than Somerset. Sussex's concentration on a youth policy has still to pay dividends. But Tony Greig firmly believes that the new imports Roger Knight and Arnold Long will give the necessary leavening of experience. PETER WALKER introduces the programme which includes news of today's other fixtures:
Essex v Warwickshire
Glamorgan v Gloucestershire Hampshire v Derbyshire Lancashire v Surrey Middlesex v Kent
Commentators at Taunton JOHN ARLOTT and JIM LAKER
Television presentation BOB DUNCAN, HUW JONES WALES Cricket: Glamorgan v Gloucestershire and Seven-a-side Rugby Union: The Snelling Tournament
A digest of the news of the week with Kenneth Kendall
Editor BILL NORTHWOOD
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 international crews send their 600 hp jet boats snarling down the rapids at 70 mph. Some leap over the rocks; some slam into them and sink - £4,000-worth of boat lost in a few seconds. The 370-mile race lasts five days and passes through rapids and canyons, lakes and the open sea. Each night the Army build a barbed wire camp on the beach - bandits without, scorpions within - but the Mexican stars are overhead and the excitement of Mexico all around. For the Rio
Balsas is much more than just a river race - it is a journey through Mexico.
Producer RICHARD ROBINSON Editors ANTHONY ISAACS and CHRISTOPHER PARSONS
Alan Alda as Hawkeye and Wayne Rogers as Trapper John in Germ Warfare
Hawkeye only wants a pint of Frank's blood. Not much to ask and it's all in a good cause. But it is a fairly safe bet that stingy Frank will refuse even such a paltry donation so Hawkeye helps himself-and gets the shock of his life.
Observations, exploration and sometimes illumination of what's going on, what's being said and what might be happening. with Alasdair Clayre
Nemone Lethbridge , Ned Sherrin
Editor DONALD BAVERSTOCK BBC Manchester
On Sunday 16 May, at 8.45 pm on BBC2, Malcolm Muggeridge starts his new series Stop to Think, when he and his guests will be attempting each week to answer perplexing questions, great and small, arising out of the human condition and submitted by the viewers. If you have questions for the first programme, when the panel will include John Mortimer, QC, and Professor Liam Hudson, an expert in IQ tests, please send them on a postcard without delay to: Stop to Think, BBC Television, London, W12 8QT.
The First 25 Years
This week the Royal Festival Hall celebrates its Silver Jubilee.
To mark the occasion
Richard Baker dips into BBC Television's Archives to tell the Hall's history and introduce excerpts from 11 memorable concerts which have taken place there.
Among the soloists are
MARIA CALLAS , DAVID OISTRAKH and VLADIMIR ASHKENAZY and the conductors include
SIR MALCOLM SARGENT
CARLO MARIA GIULINI and COLIN DAVIS
The programme ends with the Finale of Beethoven's Choral Symphony conducted by OTTO KLEMPERER with TERESA ZYLIS-GARA
JANET BAKER , GEORGE SHIRLEY THEO ADAM and the NEW PHILHARMONIA CHORUS and ORCHESTRA
Film cameraman A. A. ENGLANDER
Television presentation by PETER BUTLER
Anne Gooding Sam Shepherd
Del Quant is dissatisfied with his apprenticeship and his lifestyle. His sense of frustration increases when his courtship of 15-year-old Irene is opposed by both his father and her mother. Del joins his friend Jo, nicknamed Bronco Bullfrog, in robbing a railway truck and although he is not attracted by a life of crime, it seems that Jo is the only person who understands him.
Producer ANDREW ST JOHN Written and directed by BARNEY PLATTS-MILLS
. Films: page 9
Jo (Bronco Bullfrog):