6.40 Drawings of Seurat

7.5 Palaeontology and Geological Time

7.30 Ellingham Diagrams

Story: "Just Awful" by Alma Marshak Whitney illustrated by Lilian Hoban
Presenters Elizabeth Millbank, Fred Harris

4 50 Exploring Frequency Space

5.15 Oil

5.40 Partial Differential Equations

6 5 Nutrition Feeding and Digestion in Animals

6.30 Food Retailing

with Geoffrey Smith and Clay Jones
Dyffryn Gardens near Cardiff has, in addition to its beautiful gardens, a palm house, a cactus house and an orchid collection. A bit exotic for the average gardener, but, as Geoffrey and Clay discover, within the collection are a lot of plants that can be grown at home. Produced by JOHN KENYON BBC Birmingham
The Front Garden: tonight at 9.40

including sub-titles for the hard-of-hearing, followed by Weather

Old Mother Riley and her Daughter Kitty
Arthur Lucan and Kitty McShane created a screen legend with their portrayal of the wild Irish washerwoman and her flighty colleen. But their millions of fans never knew that the hilarious screen rows between mother and daughter were but a pale reflection of the real-life bitter quarrels that blighted their years together. Narrator KEN COOPER
Film editor BOB GEOGHEGAN Producer JOHN GRAHAM

' Would you like to see a daughter of yours doing the same sort of job ... ? '
This week:
Ian Crawford , farmer
Sue Grimes , policewoman
David Harwood , unemployed fitter Krysia Kobziak , journalist Dave Silver , disc jockey talk to Fiona Richmond
Director PETER HAMILTON Producer LYN WEBSTER BBC Manchester

Ten films in which Magnus Magnusson explores the Viking world.
4: Halfdan Was Here
- 'I have seen the Rus as they came on their merchant's journeys and encamped on the Volga. I have never seen more perfect specimens, tall as date palms, blond and ruddy.'
(IBN FADLAN, 922)
Silver coins from Arabia, silver bars from Russia, hoards of pure gold and precious ornaments have been found in staggering profusion on the tiny island of Gotland.
But how did this immense wealth come to find its way to Gotland and the heartlands of Sweden across the Baltic? What part did the Vikings play in the history of Russia?
MAGNUS MAGNUSSON follows the elusive path of the ' Rus tribes of Swedish Vikings whose power, might and ingenuity opened up the great river trade routes of Russia and led them to the gates of Constantinople.
With Dennis Edwards
Ben Kingsley , Daniel Massey
Music by JACK point . Series adviser PROF P. B. SAWYER. Research LIZ WRIGHT Film editor JEFF SHAW ProducerRAY SUTCLIFFE
Series producer DAVID COLLISON
Book (same title), £10.00 from bookshops from May

BBC2 Snooker Championship
The penultimate game in the 1980 series features a special two-frame ' play-off '.
Doug Mount joy (Wales)
1978 Pot Black Champion v Eddie Charlton (Australia) or Dennis Taylor (N Ireland)
As a prelude to next week's Grand Final, the two losing semi-finalists play their final game to decide third and fourth places in the competition.
Introduced by ALAN WEEKS Referee SYDNEY LEE
Commentator TED LOWE
Director ROY NORTON
Producer REG PERRIN. BBC Birmingham Book (same title), 11.50, from bookshops

A second chance to see this highly-acclaimed celebration of the English at their favourite pastime.
Written and narrated by CANDIDA LYCETT GREEN
It's the grand English gardens, like those of Capability Brown, that always get noticed. But, on a different scale, our front gardens can be just as varied and just as remarkable. So, too, are the people who create these small fantasies with such enthusiasm, inventiveness and passion.
An old miner builds 13 cathedrals in his front garden. A sailor cuts his hedge into a replica of his wartime destroyer. A potter banishes plants altogether.
A marvellous celebration of small English gardens and their creators ... sheer delight. (DAILY TELEGRAPH) A delectable hour of escapism in this loving study of the English at their most eccentric and inventive. (DAILY MAIL) This ylowing film ... will make you laugh, gasp, and even shed a tear or two. Please watch it. (THE TIMES) Producer EDWARD MIRZOEFF

Le Cadeau
What use is a trumpet as a gift if it moos like a cow!

PETER SNOW , CHARLES WHEELER , JOHN TUSA and PETER HOBDAY present an informed account of what's happening in the world; special reports from the BBC's correspondents at home and abroad, investigations by Newsnight's own team of reporters into what's going on behind the headlines; the latest news and weather forecast from FRAN MORRISON , plus the evening's sports results from DAVID DAVIES.
Assignment editors
GEORGE WALKER , JOHN MAHONEY Producer JOHN HOLME Director ALEX SAWARD
Deputy editor RONALD NEIL Editor GEORGE CAREY

The classic sci-fi series exploring the boundaries of man's inner self when faced with alien forces in time and space.
Starring Ruth Roman, Alex Nicol, Tim O'Connor
co-starring Curt Conway, Harri Rhodes
A moon-landing force faces the difficult ethical problem of whether to interfere in an Inter-Galactic war between alien intelligences, when pure benign intellect is being hunted to extermination by tyrannical beings intent on conquering their galaxy.