6.25 Maths: Complex Functions

6.50 Broadcast Rituals: 1

7.15 Maths Modelling: Rates of Change

7.40 Light: In Search of a Model

8.5 Ecology: Tropical Forest

8.30 Argument on Television: 2

8.55 Community Education in Belfast

9.20 Physical Chemistry: Reaction Mechanisms, 2

9.45 Air Pollution. 1: Dilute and Disperse

10.10 Calculus: Functions and Graphs

10.35 Education: Let There Be Music

11.0 Beneath Scotland

11.25 Limestones in South-west England

11.50 17th-century England: Architecture and Society

12.15 Education: Silence in Class

1.5 The Changing Countryside

1.30 Popular Culture: South Riding

1.55 Work: The New Discipline

2.20 Modern Art: Style Labels

2.45 Dickens and Popular Imagery

starring
John Bentley Hy Hazell
When Miss Garnett reports the sudden disappearance of her niece, Mrs Crossley , to the police they have an obvious suspect for murder - her artist husband. Henry. But the only person who stands to gain from the death is not Henry Crossley ...
Screenplay by KENNETH HAYLES
Based on a story by SIDNEY NELSON and MAURICE HARRISON
Produced by FRANCIS SEARLE Directed by TERENCE FISHER
9 FILMS: page 16

starring
Ruth Gordon
T. J. Hargrave Lisa Richards
Two orphans run away from their hated foster mother and set up nome in a tree in Central Park. Frightened by living on their own, gradually they make friends with a sad old woman and when danger does strike, the three of them make a formidable trio.
Screenplay by JEB ROSEBROOK from the novel by EVAN RHODES Produced and directed by HARVEY HART t FILMS: page 16

The Embassy
World Professional Snooker Championship from the Crucible Theatre,
Sheffield. Second day
Two of the trio of players in the Barry Hearn stable were competing in their first-round matches this afternoon.
TERRY GRIFFITHS (8) started out on the long trek of 17 days of tense, gruelling hours on the green baize to recapture the World Crown he won at his first attempt in 1979. If the seeding worked correctly, his opponent was that old campaigner
REX WILLIAMS. The other match this afternoon was TONY
MEO (10) whose best effort in the World Championships has been to reach the quarter-finals in 1983. If the form book is any guide, his opponent was either
JIM WYCH from Canada, or snooker's own entertainer,
JOHN VIRGO.
Also, the latest news of the matches involving ALEX HIGGINS (9) and DOUG MOUNTJOY (15), which started this morning.
Introduced by DAVID VINE Commentators
TED LOWE , JACK KARNEHM
CLIVE EVERTON
• FEATURE: page 74

A personal view in ten parts by James Burke.

The 15th-century world was one of magic, mime and memory. Then, around 1450, a small-time German goldsmith invented a secret process that changed the world and took away our memories forever.

with Jan Leeming Weather

The Thorn EMI County Championship
The Final. Middlesex v Notts, Lines and Derbys Nigel Starmer-Smith introduces highlights of today's match at Twickenham.
Middlesex have won the title six times and reached last year's semi-finals, whereas Notts, Lines and Derbys are in their first final and field a side consisting of most of the Nottingham club side that has played so well this season.
Commentators
NIGEL STARMER-SMITH with BILL BEAUMONT
Series producer HUW JONES

The Embassy
World Professional Snooker Championship
DAVID TAYLOR (16) completes his first-round match this evening, but all eyes will no doubt be on the start of JIMMY WHITE'S (7) bid to win this title. After winning the Masters crown in 1984 he went on to reach the final of the World Championship, only to be beaten by Steve Davis. His form during the present season has been inconsistent but his fast, accurate potting will be the danger to his likely opponent, GRAHAM MILES. Introduced by DAVID VINE

by George Frederick Handel Neville Marriner conducts a performance of Handel's final oratorio from
St David 's Hall, Cardiff. Fighting against his own ill-health and failing eyesight, Handel identified closely with Jephtha's fate and produced a masterpiece of musical drama.
Chorus of Israelites: BBC WELSH CHORUS
SWANSEA BACH CHOIR Chorus-master
JOHN HUGH THOMAS
BBC WELSH SYMPHONY
ORCHESTRA leader DESMOND BRADLEY Introduced by H. C. Robbins Landon Lighting STAN JONES Sound GEOFF ATKINS Executive producer J. MERVYN WILLIAMS
Producer HEFIN OWEN. BBC Wales
During the interval
10.30-10.40 a repeat showing of CONSTABLE'S painting of Salisbury Cathedral.
Written and narrated by Sir Hugh Casson

The Embassy
World Professional Snooker Championship
DAVID VINE introduces highlights of the matches involving JIMMY WHITE and DAVID TAYLOR in the first round.