6.20 Curiouser and Curiouser: The Symmetry of Nature

6.45 Minerals under the Microscope

7.10 Biology: Hearing the Call

7.35 Electrons and Atoms

With signing.
(Subtitled)

Today's presenter is Andrew Neil.
(For details see Monday)

Note: repeats are not indicated.

9.00 The Statistics Collection: Surveys and Services (ages 16+)

9.25 Mathsphere 2: A Question of Distribution/The Mathematical Thread of Life (ages 11-16)

9.45 Come Outside: Water (indoors) (ages 4-5)

Today the playbus stops at the Patch Stop, and Peggy Patch finds a woodland full of squirrels.

10.25 Ghostwriter: Lost in Brooklyn: Episode One (ages 10-12)

10.55 Watch: Art - Myself and Other People (ages 6-7)
Drip, Squiggle and Squidge find out what a portrait is.

11.15 Movable Feasts: Tough at the Bottom: Chris Vanity (ages 7-11)

11.30 Landmarks: Tropical Rainforest: The Living Forest (ages 9-12)

11.50 Le Cafe des Reves (ages 13-15)
First of a five-part drama by Nigel Hinton for secondary school students

12.10 Techno: Making It (ages 11-14)
It's the final race weekend for Amy Hadley, who is hoping to become the British Junior Karting Champion

Drip, Squiggle and Squidge find out what a portrait is with the help of Pablo Picasso.

Business and consumer news.

In his icy homeland at the North Pole, Lars follows his curiosity into many adventures. With the voices of Sue Sheridan and Jimmy Hibbert.

The everyday adventures of a Neolithic man. With the voice of Regine Candler. (Stereo)

Coverage of the semi-finals of the World Championship, from the Crucible Theatre, Sheffield.
(Stereo)

(Subtitled) (news)

Followed by Westminster with Nick Ross
Live coverage from Parliament.

3.50 News and Weather
Regional News; Weather

Further coverage from the Crucible Theatre, Sheffield. Plus the results of this year's Shot of the Championship competition. Presented by David Vine.
(Stereo)

Private Dancer. 6 October, 1979: Sam finds himself inside the body of an exotic male dancer who must try to help a deaf cocktail waitress escape from prostitution. With Scott Bakula.

This week, a relationships counsellor and "new man" finds out what it is like to change places with an East End bouncer who supports Arsenal. Presented by Lily Savage.
(Revised rpt) (Stereo)

Last in the comedy series set in the Bayview Retirement Home.

Tom's son leaves his wife and moves into Bayview. He turns out to be the most boring man in the world, and Diana decides to take drastic action.

Cycling in cities runs the risks of dirt and danger but the Government wants us to do more of it, and is promoting cycling as the answer to the country's pollution, congestion and health problems. Nowhere are these problems more acute than in the south east. The Government has already pledged three million pounds towards a London-wide cycling network but critics say that is nowhere near enough.

A phone-in discussion of the issues raised in the programme follows immediately on BBC Radios Berkshire, Kent, Oxford and GLR. If you would like to take part, call [number removed] after the programme.
Regional Programme: see variations below right

(Correction: in the listing for last week's programme we referred to "a recent murder at West Thames College and a riot at Newham College". We now understand that the murder in question was at Newham and the disturbance at West Thames
College. We apologise for this error.)

The second visit of the week to a South London community mental health team.

As Mrs Meg Brown was preparing for her son's 21st birthday party she found him upstairs crying and talking to himself. He was diagnosed as schizophrenic and for the past 14 years she has devoted herself to caring for him at home. Now she is over 70, his condition is getting worse and the strain is beginning to tell. As the psychiatric team investigate, they discover that his close-knit family may not be the blessing it first appears.

Jeremy Clarkson test drives the new Skoda Felicia, which replaces the popular Favorit, the model that helped change the company's image. The Felicia has been re-styled and now features many components, including the engine, from Skoda's parent company, Volkswagen. Chris Goffey looks at the latest offering from Tatra, manufactured in the Czech Republic, and gets a feel of the past in a Type 87. Plus Steve Berry tests the handling of the Chrysler Atlantic, a luxurious modern coupe with echoes of 30s glamour.

Classic and Sports Car Show: organised by BBC's Top Gear Magazine, this year's show will be at the National Exhibition Centre, Birmingham, over the May Bank Holiday weekend (6 to 8 May). For tickets telephone [number removed].

Written by Ray Galton and Alan Simpson
Another episode of the classic comedy starring Wilfrid Brambell, Harry H Corbett.

Rag-and-bone men Albert and Harold engage in more domestic warfare. With Kenneth J Warren and Edwin Brown.
(B/W) (Rpt) (Subtitled)

The latest semi-final action from Sheffield.
(Stereo)

Mike Yarwood talks to Professor Anthony Clare about his alcoholism and describes the damaging effects the illness has had on both his personal and professional life.
(Next programme in the series: tomorrow at 9.40pm)

Followed by Victory Stills

With Kirsty Wark.
(Subtitled)

Further coverage of the semi-finals. With David Vine.

12.00 Open View
A look ahead to OU programmes.

12.05 Images of the Cosmos: Cosmic Recycling
The birth and death of stars.

Today's debates in Parliament, with Robert Orchard.
(Stereo)