6.40 Systems, Boundaries and Biases. 75 Measuring the Earth and the Moon.
7.30 Copper as a Resource.

Story: Pancake Day by JUDY WHITFIELD. Photographs by JAMES MATHEW-JOYCE . Presenters Carol Chell , Stuart McGugan

in The Old Boy Network
It's 50 years since Percy Edwards , that uncanny imitator of birds and other animals, began the broadcasts that have made him something of a national figure.
Mimic and raconteur, he calls himself a naturalist entertainer. He played at the Windmill Theatre in 1932; toured the music-halls for years and has shared the bill with famous artists like George Robey , Max Miller and Charles Coburn.
With film clips and photographs he talks about his long career.
Recorded at the Theatre Royal, Bury St Edmunds
Producer DONALD SAYER

A series of seven programmes presented by Admiral of the Fleet The Lord Hill-Norton, GCB 2: Carrier
The fleet aircraft carrier: the most impressive fighting machine the world has ever seen. One carrier can unleash a greater variety of lethal weapons, with greater destructive power, at longer range, than any man-of-war in history. For 40 years the carrier has dominated naval warfare - she will be around for another 40 years.
Director BILL JONES
Producer JOHN DEKKER
BBC vidcobook (same title BBCV 6011) £37.95 from retailers

plays Chopin's Nocturne No 2, Op 62

We all carry in our heads the story of our own life - a story we constantly update. Because it's our own story in our own words, it reveals much about us. Persuading an individual to tell his or her life story is a sure foundation for a successful interview, to see a person rather than statistics.
Two such interviews show the value of the technique.
Producer PHIL ASHBY
A BBC/Open University production

Stan and Ollie's attempts to conceal a small dog in their room provoke a disastrous battle of wits with the landlord.

The story of a warm-hearted family of pioneer stock - surviving the Depression years of the 30s and facing the war years of the 40s. starring
Guest star
The Prodigals
A bitter lesson is learned - that the end doesn't always justify the means.
Based on EARL HAMNER JR 'S autobiographical novel Spencer's Mountain Written by ROBERT PIROSH Directed by STAN LATHAN

with subtitles for the hard-of-hearing, followed by Weather

starring Helen Morse
Takis Emmanuel , Jack Thompson Australia, autumn 1925. When
Caddie learns that her husband is having an affair, she responds to his violence by doing the unthinkable'. She leaves her comfortable middle-class home, taking her children with her, and sets out to lead an independent life. Caddie takes the only job she can get -as a barmaid - in an attempt to build her new existence. This moving film, based on a true story by a woman who never revealed her name, depicts her struggle against seemingly impossible odds.
Screenplay by JOAN LONG
Produced by ANTHONY BUCKLEY
Directed by DONALD CROMBIE .
(First showing on British television) Films : page 11

Live from London's Greenwood Theatre , television's most unpredictable half-hour.
Director RON ISTED
Produced by TOM GUTTERIDGE
(Russell Harty visits an oil rig on Thursday at 8.30 pm)

BBC2 Snooker Championship
The eighth frame in the series of 16 programmes for the 1982 Pot Black Trophy.
Featuring in Group Two: Ray Reardon (Wales) former World Champion v
Steve Davis (London)
1981 World and UK Professional Champion
Two snooker ' giants meet in this important game where STEVE DAVIS has one game to his credit, but RAY REARDON needs a win to have a chance of reaching the semi-finals.
Introduced by ALAN WEEKS
Referee JOHN WILLIAMS Commentator TED LOWE
Director ROY NORTON Producer REG PERRIN
BBCBirmingham sellers
Book (same title), £2.00 from booksellers

The BBC Television International Sheepdog Championship
Introduced by Phil Drabble with Eric Halsall
The inbred intelligence of the working collie dog is proved daily on the sheep runs of Britain and these strongly muscled and lightly boned dogs are set a stiff test on the trials course at Bala in North Wales.
Today's winning team of man ana dog go on to meet last weeks
Irish winners and challenge them for a place in the Final. Heat 4: Scotland The competitors
STUART DAVIDSON With Ben
GEOFF BILLINGHAM With Jed
TOM WATSON with Jen
Technical co-ordinator JOHN EYNOK
Director MICHAEL KERR
Producer IAN SMITH

Desert Island Discs
' I love its homeliness. It conjures up the best in traditional British pleasure, like the great British breakfast. It's an honour to be asked ' (PAUL MCCARTNEY ) For the past 40 years everyone who is anyone has been cast adrift and washed up on a desert island. The great and the famous, from Princess Margaret to Henry Cooper , from Arthur Rubinstein to Noel Coward , have faced up to the agonising task of choosing the eight records, one book and one luxury with which to live alone. This week Arena celebrates
Roy Plomley 's unique fantasy island with the help of the following castaways:
Paul McCartney , Frankie Howerd Russell Harty , Trevor Brooking The Lord Mayor of London
Professor J. K. Galbraith and Arthur Askey who first appeared on the programme in 1942. Film cameraman mike SOUTHON Film editor GERRY POMEROY Producer ALAN YENTOB Director ANTHONY WALL

First transmitted in 1982, Arena celebrates Roy Plomley's classic radio favourite, with the help of celebrity castaways, including Frankie Howerd, Arthur Askey and Paul McCartney. Show more

PETER SNOW, JOHN TUSA , PETER HOBDAY and DONALD MACCORMICK present an informed account of what's happening in the world; the latest news and weather forecast from LOUISE BATCHELOR and MARGARET HOUNSELL , plus the evening's sports results from DAVID ICKE.