Reply #14: Yes, they can, and do.

[1corona4u]

How do you think they know how many people watched the conventions? Think that was a number they pulled out of their asses?

There aren't 47 million people on Nielsen. I'm pretty sure of that.

BTW; here's an article on the DVR thing, and as you see, the DO know who records/watches what;

http://www.marketingcharts.com/television/dvr-use-not-having-huge-impact-on-ratings-2897/

On edit; here is the household members from Nielsen;

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How many "Nielsen families" are there?

There are 5,000 households in the national People Meter sample, approximately 20,000 households in the local metered market samples, approximately 1,000 metered homes for our national and local Hispanic measurement, and nearly 1.6 million diaries are edited each year.

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Roughly 26,000 households....think about the 47 million numbers that were reported for the conventions.....how do you think they got that number....