Parents of young children should note that some programmes in 'Daytime on Two' are specifically aimed at teenagers and may be unsuitable for young viewers.
9.20am Police Powers Last of six films on the police and the public Schoolbeat
People who remember their local bobby coming into class to talk about road safety will be astonished at the range of activities which now bring children and police together in schools.
This film illustrates recent initiatives in Cheshire,
Staffordshire, Northern Ireland and London - examining issues of concern to parents, police, young people and teachers about the role of police in schools.
Film editor PAUL SINCLAIR Producer JOHN TWITCHIN (R) (e)
For the print pack containing information on the main police powers which affect young people, send a 12" x 9" sae with a 55p stamp to: [address removed]
9.50am France Francais Le Quatorze Juillet
(e)
10.05am You and Me
A series for 4 - and 5-year-olds presented by GARY WILMOT.
Cosmo and Dibs write a poem. Also, there's a film of a visit to the dentist.
Song: Chi-Chi-Bud-Ho Studio director SUE ARON
Film director NICCI CROWTHER (R) (e)
10.20am Science Workshop Hearing (A)
How loud is 'loud'?
What happens to sound underwater?
What do our voices look like? (R)(e)
10.40am Around Scotland Aberdeen
Nocturnal Animals
Advances in technology mean that much more is known about the mysterious animals who are active at night.
Producer PETER WHITEFORD (R)(e)
11.00am Words and Pictures The Winter Bear
(e)
11.15am English Time Storytelling
When the Bell Goes
From Greyfriars to Grange Hill. A look at school stories past and present featuring Tom Brown 's Schooldays,
Grange Hill and Gene Kemp 's Gowie Corby Plays Chicken. Producer DAVID MELDRUM (R)(e)
11.35am MI 10:
Mathematical Investigations Get the Facts; Rolling
(e)
11.55am Why? Because What's for Dinner?
(e)
12.15pm Science in Action Waste Not, Want Not
(e)
12.35pm Lifeschool
Links - the Developing World Trick or Treat
(e)
1.00pm A Life of Our Own Ninth of ten programmes presented by GARY BOURLET and PETER BURGIS with JOHN HERZOV. Four friends from Tiverton go to the cinema, the pub, and go for bicycle rides. An old-time dance group dance their way to friendship, and the presenters discuss how to make an enjoyable social life.
Film cameraman PETER HALL Producer JOHN BROOKE (R) (e)

A See-Saw programme with lain Lauchlan and Jane Hardy Harp
Music by RICHARD BROWN Puppets by JOANNE COLE Graphics CLARE BEATON
Producer MICHAEL COLE (R)

Winter Festival: Holland
(e)

Tennent's UK Professional Snooker Championship
Today's play features the first two quarter-finals, with four players competing for two places in the last four. Matches are still the best of 17 frames and DAVID VINE introduces coverage of this afternoon's seven-frame session from Preston Guild Hall.
Commentators TED LOWE
JACK KARNEHM , CLIVE EVERTON Television presentation
KEITH PHILLIPS , PETER HAYWARD
Executive producer KEITH MACKENZIE including at
3.00pm News and Weather
3.50-4.00pm
News and Weather
Regional News and Weather

Anagram: name jingle Clue: Newsreader
(Answer in the programme!)
With Paul Coia and Bryan the computer

A Pattern of Building
Five programmes written and presented by Alec Clifton-Taylor 3: Totnes, Devon
Totnes was founded by the Saxons. It has an impressive medieval church.
Many of the exteriors of the early timber-framed houses have been modified over the centuries, but within there is a series of handsome plaster ceilings. The other Totnes speciality is hung slates quarried locally, and used to make decorative patterns. producer DENIS MORIARTY (R)
* CEEFAX SUBTITLES

Six encounters with the delights of home-made pickles and chutneys and the people who make them to perfection.
With Davilia David and David Mabey
3: Of Fungi and Fishes
Pickles are made and enjoyed throughout Europe. Today's programme looks north to Scandinavia and south to Italy. An Aladdin's cave of Italian pickles is found in a Covent Garden basement and treasures that lie in the shed at the bottom of Mr Gizzi 's garden are uncovered.
Swedish pickled herrings are made in London and English ones in Norfolk, where you can discover why gravlax need not be an expensive luxury. Videotape editors
PAUL EDMUNDS. MARK MANNING Produced and directed by DAVID COLLISON
A THIRD EYE production for BBC North West

Mission Impossible with Kidnap
Written by SAM ROECA and JAMES L. HENDERSON
Directed by PETER GRAVES (R)

Reportage
current affairs magazine programme, with contentious issues, live debates, fashion, sport and music news. There's a phone poll and a reaction line,
[number removed], for you to ring with your opinions. Series producers
SHARON ALI , RACHEL PURNELL Executive producer
JANET STREET PORTER BBC Manchester
(Revised repeat next Sunday)

As the cars arrive in Harrogate for the overnight halt, William Woollard headlines the day's events in the Lombard RAC Rally.

From Seaweed to Port
Narrated by Tom Salmon The Atlantic coast of Portugal is one of Europe's last strongholds of sail. This film portrays two aspects of this great seafaring nation's history. Producer BRIAN HAWKINS
Director YVONNE DEUTSCHMAN BBC Bristol (R)

Issues from science today
What Makes You Sexy? Children become boys or girls at conception. But for alligators, the temperature during incubation decides the sex of their offspring. Why are they so different?
The newly-discovered human gene for sex is helping scientists answer this biological puzzle.
Testing, Testing ...
With huge stockpiles of nuclear weapons do the Superpowers - and Britain - need to continue testing them? Theodore Taylor , one of America's most inventive nuclear scientists, explores the secret world of the bomb-makers, from the Nevada desert to advanced weapons laboratories where the next generation of weapons is being invented.
Producers PETER CERESOLE
DANA PURVIS , JEREMY TAYLOR
Executive producer DAVID PATERSON Series producer JANA BENNETT

starring
Fade Out, Fade In (2)
Frank is being held for psychiatric observation. Written by JIM FRITZELL and EVERETT GREENBAUM
Directed by HY AVERBACK (R)

A film in four parts by DENNIS POTTER based on The Past Is Myself by CHRISTABEL BIELENBERG 2: Trapped in Germany by the outbreak of war,
Christabel finds herself at the mercy of Allied air raids. Peter's secret work is put at risk when she takes in two house guests.
Original music STANLEY MYERS Make-up DEANNE TURNER
Sound mixer PETER EDWARDS Film editor CLARE DOUGLAS
Executive producer DENNIS POTTER Produced by KENlTH TRODD
Directed by ADRIAN SHERGOLD
* CEEFAX SUBTITLES

Carlisle to Harrogate via
Scotland has been the route of day four of the Lombard
RAC Rally, including action in the Scottish forests and further special stages in Kielder Forest in Northumberland.
William Woollar d brings you the latest information from rally headquarters, BARRIE GILL has the highlights of today's special stages and TONY MASON reports on the stories of the day.