6.20 Special Relativity
6.45 Are Four Colours Sufficient?
7.10 Oceanography: Carbonates
7.35 Handicapped in the Community
8.0 Biochemistry: Nerve Impulses

Mark Curry welcomes you to the Picture Show control room to view some of his favourite cartoons, videos and films.
Maggie Philbin takes the Mobile Picture Unit back to Wales and learns all about Punch and Judy. Star guest is Paul Daniels
Peter Powell reviews some of the latest pop videos.
Director JUDY MERRY
Producers TONY HARRISON , DIANE CAMPBELL Executive producer DAVID BROWN BBC Manchester

See panel including at 1.5 pm News Summary

Introduced by Desmond Lynam

Cricket: Fourth Test The Cornhill Insurance Test Series England v West Indies Third day from Old Trafford A Test Match is still a Test Match, but, based on what has gone before, England have only their pride left to fight for. But it has proved a joy just to watch and marvel at which West Indian is going to win the game almost single-handed - there've been Richards, Greenidge and Marshall of course! Commentators RICHIE BENAUD, JIM LAKER TOM GRAVENEY, TED DEXTER

World Bowls Championships 84 from Aberdeen Just be thankful MICHAEL HOLDING always wanted to be a cricketer. No helmets required at this pace. Most serious injury was a pipe burn, during an anxious end, while not offering a shot. Defending World Champion DAVID BRYANT likes a pipe and is English. Commentators DOUGIE DONNELLY, DAVID RHYS JONES JIMMY DAVIDSON, GRAHAM HOWARD

Racing from Ascot 2.0 The Florentine Diamond Stakes (Ladies Race. Old Mile) 2.35 The Princess Margaret Stakes (6f) 3.20 The King George VI and The Queen Elizabeth Diamond Stakes dim) The supreme test for the Classic generation, taking on older horses. With high finance dictating racing nowadays, nothing is certain until the horses are at the post, but English and French Derby winners Secreto and Darshaan are intended runners. Against them the marvellous mare Time Charter, the winner last year, and 1983 Derby winner Teenoso. The prize is over £135,000. Commentators PETER O'SULLEVAN JULIAN WILSON, JIMMY LINDLEY

Television presentation: Cricket NICK HUNTER, BILL TAYLOR, MIKE ADLEY Bowls BILL MALCOLM Racing RICHARD TILLING Assistant editor Grandstand BRIAN BARWICK Producer Grandstand MARTIN HOPKINS Editor Grandstand JOHN PHILIPS

Chuck Wagner as Automan and Desi Arnaz Jr as Walter Nebicher Murder MTV
Sweet Kicks is an all-girl band on the rise. At the shooting of the group's video, an explosion rocks the stage. Walter's and Automan's attempts to track down the would-be killers are hampered when the girls' father seeks help from the underworld ...
Written by DOUG HEYES JR
. Directed by BRUCE GREEN
* Subtitles on Ceefax page 170

with Jan Leeming ; Weatherman
6.5 Sport/Regional News

Peter Powell introduces a summer series designed to bring a splash of holiday colour to Saturday evenings. Tonight the 1,200 audience at Ritzy Club in Norwich welcome top bands Frankie Goes to Hollywood and Thompson Twins , and guest Nik Kershaw.
From the streets of Great Yarmouth John Walters introduces his first roving Walters' Weekend, while from the stage of the Radio 1 Roadshow at Skegness Mike Read tackles the first of the DJ Challenges and introduces the special mystery Roadshow band. Sun, sea, stars and summer sounds-all part of a fast-moving 30 minutes to put you in the holiday mood. Assistant producers
JONATHAN BULLEN , ALAN WRIGHT Production PETER HAMILTON BBC Manchester
0 BACK PAGES: 94

starring
Virginia McKenna , Bill Travers
Based on the best-selling books by Joy Adamson , Born Free is one of the most famous and successful of all true-life adventure movies.
George Adamson , a senior game warden in Kenya, brings home three small lion cubs, whose mother he has shot. With his wife, Joy, he succeeds in rearing them and Joy becomes particularly attached to the smallest, Elsa.
Screenplay by GERALD L. c. COPLEY
Based on the books by JOY ADAMSON
Produced by SAM JAFFE and PAUL RADIN Directed by JAMES HILL. Films: page 14

The very best in sparkling Saturday-night entertainment featuring non-stop comedy, dance and song. Tonight from the world of laughter, the unique comedy of Norman Collier
Star of Three of a Kind, David Copperfield
The outrageous humour of 'Chase me, chase me' Duncan Norvelle and the brilliant young comedy star Gary Wilmot
From the world of music, chart-toppers
Deniece Williams Gary Numan and from Holland the sensational Dolly Dots
Special guest star Lulu
SIZE 12
Choreography by LUD ROMANO
JOHN COLEMAN AND HIS ORCHESTRA Sound HUGH BARKER
Lighting FRED WRIGHT
Designer KENNETH SHARP
Executive producer STEWART MORRIS Producer STANLEY APPEL

starring
The Downstairs Bride
Jeff and Kirby return to Denver and a frosty reception from Joseph. Sammy Jo learns that Steven is alive but her opinion of him has not improved since his 'death'. Krystle gives Adam the shakes and Blake is rattled by his board....
Written by DICK NELSON
Directed by PHIL LEACOCK

with Jan Leeming ; Weatherman

starring
Burt Lancaster , Richard Widmark Assisted by a team of ex-convicts, Lawrence Dell, an embittered cashiered general, breaks into the Launch Control Centre of a Titan missile silo and threatens to unleash the nuclear warheads. His demands are a free pardon, the disclosure of vital political secrets and the President of the USA as a hostage ...
Robert Aldrich 's tense nuclear thriller set in present-day America is being shown in its full-length version. =
Screenplay by RONALD M. COHEN EDWARD HUEBSCH Based on the novel Viper Three by WALTER WAGER
Produced by MERV ADELSON Directed by ROBERT ALDRICH
(First showing on British television) Films: page 14

brings you live from Los Angeles
The Opening Ceremony of the XXIII Olympic Games
David Coleman describes tonight's spectacular occasion from the Los Angeles Olympic Stadium, only a few miles away from the heart of Hollywood. The traditions of Busby Berkeley and Cecil B. deMille are sure to be to the fore as the ceremonies start with a display devoted to the Music of America. Taking part, an 800-member marching band, 2,000 dancers, a 1,000-voice choir accompanied by nearly 100 grand pianos – with music from Broadway and the movies.
Then the pageantry of the formal Olympic ceremonial:
The March-Past of competitors from over 100 competing nations
The Opening of the Games by President Reagan
The Parade of the Olympic Flag with the singing of the Olympic Hymn
The Olympic Torch is carried into the Stadium at the end of its journey from Olympia in Greece
The Lighting of the Olympic Flame
The Olympic Oath is taken by an American athlete
Introduced by Desmond Lynam
Woddis On: page 93
OLYMPIC SUPPLEMENT: page 37