Today's story is "The Wobbly Chair".
Presenters this week Carole Ward, Johnny Ball

(Colour)

The Royal Institution, London Annual Christmas Lectures to Young People by Dr John Napier

By examining the behaviour of forms of living creatures different from ourselves, we can get some answers to the problems of explaining evolution. Dr Napier uses experiments with conjuring tricks and butterflies to help in our understanding.
No two people are exactly alike. We only have to look at our hair, eyes, hands, and the way we sit and stand to realise how different we are from each other.

with Peter Woods
Weather

The High Chaparral is the home of a pioneer family in the newly won West; is the prize the settlers must hold against outlaws and Indians; and spells adventure in the wild Arizona territory of 1870.

Three outlaws rob and burn the home of Dan Casement, whose baby grandson dies in the fire. Grimly determined to avenge the child's death, Casement trails the men all the way to Tucson - for the final showdown.

A duel of words and wit between Frank Muir, Angela Douglas, Deryck Guyler and Geoffrey Wheeler, Nemone Lethbridge, Cardew Robinson
Referee Robert Robinson
(from Manchester)

This week's programme in the series on Man and Science today.

Experts estimate that within 30 years - some say sooner - the tiger, orangutan and gorilla will have vanished for ever.

For each year of this century one wild animal has been wiped out. Despite game parks and nature reserves, the natural habitat of many of the great, mammals is being destroyed for ever by Poaching, political instability - and man's need for more and more land.

If this slaughter in the wild continues, we must preserve these endangered animals in zoos. But to breed sufficient numbers and establish zoo banks to ensure their survival would mean changing the format of zoos from ' animal exhibitions' to breeding centres.

Can zoos do it? With a worldwide breeding record for gorillas of under two a year in zoos, just what are the chances for such species in captivity? Or is it the last great battle for survival?
(How would you like to be a gorilla's guest?: see page 15)

and Weather

from Melbourne: fourth day
by Satellite
Recorded highlights of the day's play.
Presented by David Kenning and Denis Kelly in collaboration with the ABC

with Joan Bakewell, Michael Dean, Tony Bilbow, Sheridan Morley