9.10 A Good Job With Prospects
Short Term Service: A short term service commission in any branch of HM Forces offers you a chance to be a leader in challenging and interesting environments. And later it can help you secure a good job in civilian life. Producer JOHN CHAPPLE
Series editor RONALD SMEDLEY
9.38 Going to Work Local College
Leaving school with little exam success isn't the end of the world. Local colleges offer many courses for young people who have few qualifications. Producer PETER M. EVANS
10.0 You and Me
A series for 4- and 5-year olds
Cosmo, Dibs and GARY WILMOT are sharing out the food for a picnic. We meet the words 'in' and 'out' and watch a girl at her karate class. Producer richard CALLANAN
10.15 Music Time. 13: Tune Shapes The violin and piano - with help from a garden gnome - introduce steps, jumps, slides and repeated notes. Children use pictures of tune shapes to compose xylophone tunes.
Presenters JONATHAN COHEN and HELEN SPEIRS with CHRISTOPHER WARREN-GREEN (violin)
Producer ELIZABETH BENNETT
10.38 Twentieth-Century History Britain Alone
3 September 1939; Britain declares war on Germany.
11.0 Zig Zag
Space. 3: Planets and Comets
Starship Zig Zag penetrates deeper into the universe and explores the planets in our solar system. Some aliens from the classroom put in a brief appearance.
Producer DAVID MELDRUM
11.23 Talkabout
The Story of Chen Ping
11.42 General Studies
Horizon: 'China's Child'
(For details: see Wednesday 11.39)
12.10 pm Hold Down a Chord
A beginners' course in folk guitar with JOHN PEARSE.
Book (same title) C2.50 from booksellers
12.25 Plants in Action
Nine programmes on the science behind gardening, presented by ALAN HIBBERT.
3: One Parent Families: Cuttings
12.50-1.15
The Unemployment Industry: 1
Five programmes about responses to youth unemployment.
3: Training for What? Pilot Youth Training Schemes.
1.20 Encounter: France Travel and Transport
By air from Poitiers, bus and train from Fecamp; barge from Rouen.
1.38 Politics in Action 3: Housing Problems
The story of Wellshot Residents' Association and its work in Cambuslang, Glasgow.
2.1 Words and Pictures. Peace at Last
'I can't stand this,' says Mr Bear as he tries to escape from the sound of his wife's snoring. Other nocturnal noises increase his irritation. He does find peace at last, but not for long. Presenter VICKY IRELAND Producer MOYRA GAMBLETON
2.18 The History Trail 2: Living in London
The pleasures of Vauxhall - and life in a grand house.
2.40 The Music Arcade 3: The Recording Studio
TIM WHITNALL records his rock 'n' roll song and introduces some traditional Indian music.

John Tidmarsh narrates the schools history programme. This edition looks at how Britain fought Germany alone after the fall of Europe in June 1940.

with subtitles, followed by Weather

Sidney Toler in Charlie Chan in ... City in Darkness also starring
Lynn Bari , Lon Chaney Jr
With the Munich crisis threatening an end to peace in Europe, Chan finds himself at a police reunion in Paris the night of a cautionary blackout. When a munitions manufacturer in league with the enemy is murdered, a multiplicity of plots and suspects confronts the great detective.
Screenplay by ROBERT ELLIS and HELEN LOGAN from a play by GINA KAUS and LADISLAUS FODOR
Based on the character created by EARL DERR BIGGERS
Produced by JOHN STONE
Directed by HERBERT I. LEEDS
Films: page 15

Ann Packer
When ANN PACKER failed to win the Tokyo Olympic 400 metres, and her fiance ROBBIE BRIGHTWELL failed in the men's 400 metres, the nation's heart missed a beat!
Series producer JEFF GODDARD

Opera North out and about in Yorkshire.
In just two days teenagers from Kettlethorpe High School near Wakefield are guided by producer Graham Vick through a series of intense rehearsals to a school performance of the modern opera Peace.
Director ROGER KEECH Producer MIKE MURRAY

Five personal views of issues in secondary schooling. , 4: Education for What?
Maurice Holt , a former headmaster, argues and defends the view that since we cannot predict the future, we must equip youngsters with the capacity to adapt to the changing world. The Government's emphasis on vocational training in education, he says, is based on preparation for today's jobs. He suggests, and shows film of, alternative ways for schools to help pupils prepare for an uncertain tomorrow. Introduced by Tessa Blackstone
Produced by ROGER OWEN

The second of six programmes in which Leo Sayer and his guests entertain with music and songs.
Adding glamour, the Dancers LSD Leo's guests tonight are
John Cougar Mellencamp David Grant and special guest Paul Nicholas
Script associate JOHN JUNKIN
Choreography FLICK COLBY
Musical director JOHN MEAUNG
Costume designer DORINDA REA
Sound HUGH BARKER
Lighting BILL MILLAR
Designer HUMPHREY JAEGER
Produced and directed by STANLEY APPEL

A duel of words and wit between Arthur Marshall
Rula Lenska , Tim Brooke-Taylor and Frank Muir
Clare Francis , Robin Bailey Referee Robert Robinson
Call My Bluff devised by MARK GOODSON and BILL TODMAN
Produced and directed by PAUL CIANI

How do you break into a bank, learn about your boss's private life or locate a Russian nuclear test site? With a home computer. All these illegal activities have actually happened. As industrial societies become increasingly dependent on computers and as more and more information is being stored and transmitted in electronic form, many of these systems have become vulnerable to attack.

"Horizon" looks not only at ways they can be broken into but at the efforts to prevent this and preserve our privacy in this brave new electronic world. One answer may lie in the computer-generated codes which are used to protect the messages of banks, businesses and governments and may one day be regularly available to us all.

And a new development in code making suggests that soon it may no longer be so easy for thieves, or the authorities, to keep tabs on us....

A specially recorded concert featuring the musicians from the famous Preservation Hall, New Orleans, whose making and playing of their style of jazz over the decades has established them as a legend. Recorded at The Theatre Royal, Bury St Edmunds. Sound CHRIS HOLCOMBE Lighting TOMMY THOMAS Producer SIMON BETTS

John Tusa , Peter Snow and Donald MacCormick , with Maureen Carter and Bridget Kendall , present reports, interviews and analysis.
Producers PETER BELL. JOHN MORRELL
DAVE STANFORD
Directors JOHN WILKINSON
GLEN DAVIS. CHRIS FOX Assignment editors
NICK GUTHRIE. HELEN JENKINS Deputy editor PAUL NORRIS Editor david DICKINSON