Today: "The Caterpillar and the Mountain" by Ruth Craft
Presenters this week Chloe Ashcroft, Johnny Ball

To a girl of six a boy is a noisy, rough creature.
Ten years later he is something to be sought after.
What happens in between?

with Richard Whitmore; Weather

A Western starring Maureen O'Hara, Jeff Chandler, John McIntire

The Kiowa Indians are preparing for full-scale war. Major Howell Brady is assigned to a cavalry fort in Texas to try to stop the uprising. When Brady decides to ask another Indian tribe to help the Army in a joint fight against the Kiowas he faces bitter opposition from the garrison's commanding officer.

For several years now, many of us have closed our minds to the possibility of a nuclear war, as though the bombing of Hiroshima and Nagasaki had never happened. Yet the build-up of nuclear weapons continues, with a current world stockpile equivalent to 10 tons of TNT for every person alive today.

But quantity is no real measure of the problem of the balance of power. In the last 25 years over 7,000 increasingly sophisticated nuclear weapons have been developed in the US alone. The hours once available for calling off a bomber attack have been reduced to minutes with the missile systems.
Has this technology led to greater security for the countries concerned or to a situation fast becoming impossible to control? What real chance is there of ever calling off the arms race?

For this programme Horizon filmed at a missile base in Missouri, an H-bomb museum in New Mexico, and talked to scientists personally involved in the dynamics of the arms race.

Match your musical wits tonight against Polly Elwes, Bernard Levin, Richard Baker
Guest musician Marion, Countess of Harewood
Chairman Joseph Cooper

(Colour)

by Dennis Woolf
with Joe Melia as Hal, Hilda Braid as Hilda, Neil Wilson as Arthur

Hilda and Arthur are quite content watching television. Hal, however, believes in giving people 'live' entertainment. But audience participation has hilarious, unforeseen complications.

with Joan Bakewell, Tony Bilbow, Sheridan Morley, Ray Taylor