7.5 The Location Problem. 7.30 Gas and Steam Turbines.

9.10 Descubra Espana: Pueblo y capital
Ambiente de pueblo; Vida de ciudad; La Semana Santa

9.27 Brazil: Skyscrapers and Slums

9.48 Junior Craft, Design and Technology: Up and Down the Hill: Downhill

10.10 Science Workshop: Bread: A

10.32 Scene: And Mum Came Too

11.5 Near and Far: What is a Street?

11.30 Search: Wales and the Americas: 1: Cambriol Newfoundland
America has held an almost magical attraction for men and women from Wales for hundreds of years. The myth of Madog takes us back at least as far as the 12th century. But we know for certain that in 1616 a group of Welsh men and women attempted to establish a new Wales, which they called Cambriol, on the island of Newfoundland. They were led by Sir William Vaughan, originally from Golden Grove in Dyfed. Today there is no trace of the Welsh in Newfoundland. What happened to them?
Presented by Noreen Bray.
BBC Cymru/Wales

11.55 The Past Afloat: 1: Shipshape
Book (same title) £12.95 from booksellers

with Richard Whitmore and Moira Stuart
Weather ANNE PURVIS

(London and SE: Financial Report, and News Headlines with subtitles)

DONNY MACLEOD , BOB LANGLEY MARIAN FOSTER and MARJORIE LOFTHOUSE are the presenters of television's liveliest lunchtime magazine, introducing a cheerful mixture of information, music and humour.

A See-Saw programme

A series for 4-and 5-yearolds, and adults watching with them. This week: a ' Introduced by CHRISTOPHER NEIL
Puppet animation JOE BARTON
Producer BARBARA PARKER

3.5 Hoover Fillies Mile (Old Mile) This valuable event has become the season's most significant trial for the following year's Oaks.
3.40 Diadem Stakes (6f)
A clash between Indian King and the remarkable non-stop winning filly Soba could make this the season's most remarkable sprint. Introduced by JULIAN WILSON
Commentators PETER O'SULLEVAN JIMMY LINDLEY and JOHN HANMER
Producer RICHARD TILLING

by CLIVE DOIG
TOMMY BOYD presents the fourth day of the trail. Final clues to where the treasure map is hidden.

A continuation of the new serial in 26 parts based on the stories by MARK TWAIN.
Tom Sawyer and Huckleberry Finn had many adventures and escapades along the banks of the Mississippi River in the 1850s. The boys found some missing treasure and shared the reward. When Huck saved the Widow Douglas' life she offered to raise him as her son. Tom was pleased but Huck, who had always lived rough, secretly still wanted to feel free. 13: Huck Becomes the Victim
Director MICHAEL BERRY
Writers STRANGE AND STRANGE
Executive producer TOM WAGNER
Produced by MADISON PACIFIC FILM LTD in association with WAGNER-HALLIG FILM GMBH

with Paul McDowell

with Simon Groom
Sarah Greene and Peter Duncan
Assistant editor IAN OLIVER Editor BIDDY BAXTER

The Chrysalis with the voices of KENNETH WILLIAMS
Written and directed by NICK SPARGO

with Richard Baker ; Weatherman

Look East, Look North
Look North West, Midlands Today South East at Six, Points West
South Today, Spotlight South West and at 6.25
Nationwide

A silent, private world - fascinating as any fiction - where adders dance, grass snakes lay eggs in centrally heated compost and pencil-sized creatures wrestle tadpoles in garden ponds!
In this intriguing study, the camera observes intimate mating rituals and witnesses a remarkable event - an adder birth. It follows a hunt underground and joins a strange ' gathering' inside the vipers' den. It seems that the legendary 'serpent' is not quite what it's made out to be once you've untangled fact from fiction!
BBC Bristol
Book, Wildlife Through the Camera, £10.25. BBC videobook and laservision videodisc, David Attenborough's Videobook of British Garden Birds (BBCV 1005) from retailers
(Subtitles on Ceefax page 170)
Back Pages: 98-99

by ALEX SHEARER
A comedy series starring and A Sporting Chance
Brian decides to join the various sporting activities at the university - rugby, rowing and pot-holing. Steve and Sonia join him enthusiastically on their first trip down the pot-holes.
Music RONNIE HAZLEHURST
Designers PAMELA LAMBOOY. DIANE MENAUL Producer ROGER RACE

with Michael Buerk , Weatherman

by ALICK ROWE
A Six-part serial starring and 3: March. During half-term, Rob's relationship with Claire has become increasingly strained. Although Pam's commitment remains as strong as ever, Tony's misgivings about fostering Claire have clearly deepened.
Closing title music arranged by JOSEPH HOROVITZ
Script editor JENNY SHERIDAN Designer SALLY ENGELBACH Producer RON CRADDOCK Director JOHN GORRIE

Continuing the inside view of the largest operation in regional crime squad history.

Working from Reading with the help of two supergrasses, No 5 Regional Crime Squad are preparing to arrest 30 'targets' - top London armed robbers and their associates - for unsolved robberies committed between 1972 and 1980. With one week to go before D-day, when the mass arrests are due, Det Chief Insp Brian Ward and his men have not yet traced one major target - bank robber Rudy Cooke. An undercover team is sent to trap him. They must find Cooke before the main operation begins.

BBC Bristol