7.15 Maths - the Derivative

7.40 Buffon at Montbard

8.5 Dartington Hall School

Chicken Lady's Revenge

A Problem for Time-travellers

Many light years away on the far side of the galaxy lies Arg, a small planet of little consequence. On a day trip from Earth by time-machine are Paul Darrow, Lesley Judd and Robert Malos

The Argonds, a polite race of advanced dragons, find it amusing to test these visiting time-trippers.

Argonds: Charmian Gradwell, Christopher Leaver, Moira Stuart

ROY CASTLE finds out from DR PHILIP JAMES why we should all be eating more dietary fibre - better known as ' roughage'. Dr James also explains why wholemeal bread is so good for you, and how you can tell which breakfast cereals are high in fibre.
Production assistant JENNY STEVENS Producer PETER RIDING

A feature film starring
Jeff Chandler , Faith Domergue
At the height of the American Civil War, Major McKay, stationed at Fort Laramie, has one great need - horses. When rustlers set out to exploit the situation by stealing horses from the Sioux, Captain Jonathan Westgate , a discharged Union officer, is the only man who can prevent a major Indian war.
Screenplay by MELVIN LEVY
J. ROBERT BREN and GLADYS ATWATER Produced by ALBERT J. COHEN
Directed by LLOYD BACON. Films: page 7

The Cornhill Insurance Test Series
England v West Indies from Lord's Third Day
PETER WEST introduces live coverage of the morning's play.

Introduced by Frank Bough
1.35*
Rifle and Pistol
Shooting from Bisley Camp
The Alka-Seltzer Invitation International
Britain's top marksmen take on shooters from nine countries, including China, East Germany, Hungary, Italy and Sweden. Commentator STUART STOREY
1.50; 2.20; 2.50*
Racing from Ascot
2.0 The Halifax Stakes (2m)
2.30 The Fenwolf Stakes (6f)
3.0 Fortnum and Mason Stakes (5f) Commentators PETER O'SULLEVAN JULIAN WILSON and JIMMY LINDLEY
2.10; 2.35; 3.30*
Cricket: Second Test
The Cornhill Insurance Test Series England v West Indies
Continued coverage from Lord's Commentators
RICHIE BENAUD , JIM LAKER
TED DEXTER , TOM GRAVENEY
3.5; 3.30*
Athletics from Meadowbank
BAAB Olympic Trials
The BAAB selectors meet tomorrow to finalise the team for Moscow, and the three events remaining; the men's 800 and 5,000 metres and the women's 1500 should provide some thrilling competition. With Sebastian Coe and Steve Ovett already selected, one man must prove he is worth a place in the 800 metres. All three places in the 5,000 are at stake, and now that Christine Benning has withdrawn, the women's 1500 is just as open.
Organised by the BAAB in association with British Meat.
Commentators david COLEMAN
RON PICKERING , STUART STOREY
3.30*
International Tennis from Devonshire Park, Eastbourne
The BMW Championships In last year's memorable final MARTINA NAVRATI lova was the runner-up but went on to win Wimbledon. This year she is seeded to win at Eastbourne. Commentators DAN MASKELL
JOHN BARRETT , ANN JONES
5.0* Final Score
News and results of all today's major sporting events.
Today's timetable:
1.35 Shooting; 1.50 Racing
2.10 Cricket; 2.2* Racing
2.35 Cricket: 2.5* Racing; 3.5 Athletics
3.30 Tennis/Cricket/Athletics
5.0 Final Score
* Timings subject to alteration
Television presentation: Racing JOHN MCNICHOLAS
Cricket NICK HUNTER. BILL TAYLOR Athletics JOHN SHREWSBURY Tennis JOHNNIE WATHERSTON
Producer Grandstand MARTIN HOPKINS Editor Grandstand HAROLD ANDERSON

Today: We Give Pink Stamps, Crow de Guerre, Reel Pink

with Jan Leeming ; Weatherman

starring and guest stars
The Girl from Somewhere
The daughter of a high and mighty General comes into Vince's life with a bang-literally. Then the action really starts to hot up.
Written by JOE BONADUCE Directed by BOB CLAVER

You can't go ' walkies ' while this is on! Terry Wogan , live and spontaneous, to ' banjax ' your weekend.
Signature tune RONNIE HAZLEHURST Programme associate TONY HAWES Designer BOB COVE
Director BRIAN PENDERS Producer ALAN BOYD

Introduced by Jimmy Hill with Lou Macari and Lawrie McMenemy
Live and exclusive coverage from the Stadio San Paolo, Naples, of the third-place final in the 1980 European Football Championship.
Commentator BARRY DAVIES
Match summaries from BOBBY CHARLTON
Producers FRED VINER and JIM RESIDE
Editor MIKE MURPHY
Television presentation ITALIAN TELEVISION SERVICE

The Constant Companion a nursery Ginger enjoys her job schoolteacher. When she finds a vase of fresh flowers on her desk each morning, she is intrigued and quite pleased - at first...

with Jan Leeming ; Weather

A serial in ten episodes by BRIAN CLARK , starring with 4: While dealing with local problems in Dover, Mark Telford still finds himself involved in the bank's International Division in London and is again called upon to justify the apparent step backwards in his career. His wife, meanwhile, takes a step forwards, landing herself a job in theatre management.
Music by JOHN DANKWORTH Producer MARK SHIVAS
Director BARRY DAVIS

Bob Langley and guest presenter Jenny Hanley introduce a cheerful, irreverent blend of music and conversation. Tonight's guests include: Alfred Marks and Simon MacCorkindale
With KENNY BALL AND HIS JAZZMEN
Director ROY NORTON Producer ROY RONNIE