91av

Aerial combat

How do the people monitoring television viewing figures know that the numbers they release are accurate? They often total in their millions, but nobody has ever asked me which shows I have watched.

Stephanie Hilden, Portadown, Armagh, UK

Topics: Last Word

More from 91av

Explore the latest news, articles and features

Popular articles

Trending 91av articles

Four children with terminal brain cancer saved by new cell therapy

Game that reduces dementia risk may clear amyloid from men’s brains

The US-China AI arms race has taken an unexpected turn

Maya mathematician’s name decoded alongside astronomical formula

This book is essential reading before watching the new Odyssey film

Alzheimer’s, stroke, depression: The preventative power of sauna

Can everyone live a ‘good life’ without destroying the planet?

Hard but lightweight ‘bio-metal’ material discovered in sea worm jaws

Resuscitated human retinas respond to light 10 hours after death

Salt batteries are about to shake up EVs and grid storage