What do "I'm Backing Britain", electronic music and nuclear lighthouses have in common? Nothing at all, but they're all here in this 60s TV magazine show.

I'm Backing Britain, a campaign started by five Surbiton secretaries working overtime for free, will either warm your cockles or raise your hackles... but we can all be grateful that this story doesn't include the bandwagon-jumping single by Bruce Forsyth. Altogether more tuneful is Tristram Cary on electronic music, and infinitely less hazardous are the nuclear-powered lighthouses on show.

Contains the following stories:

BACKING BRITAIN: Five young secretaries inspire Britain in a campaign to improve productivity.

EXPLORATION INTO SOUND
The science of electronics harnessed to musical tradition has produced a new dimension in sound. London Line listens to some recent electronic music compositions, and talks to composer Tristram Cary.

The RIPPLE ISOTOPE NAVIGATIONAL LIGHT
A nuclear powered lamp.