How Do They Know And Is There A Website?

[Barsel]

You know when you see that so many millions tuned in to watch such and such a programme on the telly, How do they know? Is there a website where you can go to check the viewing figures of any particular TV programme? x

[ummmm]

They install boxes in random peoples houses and then calculate the average.

[Old_Geezer]

Where do they find these random people ?
Do they have arms sticking out of their ears or something?

[Buenchico]

Methodology:
http://www.barb.co.uk/resources/barb-facts/how-we-do-what-we-do?_s=4

Top 30 programmes for each major broadcaster:
http://www.barb.co.uk/whats-new/weekly-top-30
(Adjust the filters at the top of the page for other periods. See the links under 'What's New' for more figures)

[Barsel]

Thanks for your replies. Have watched the videos on the link Chris and I hope I never get asked to participate as there is no way I would remember to press buttons for this that and the other. :-) x