Are all channels play at once through a cable TV line and how does the internet travel both ways on the same line?

Question

Bonus Question: How do networks know what’s being views the most?

In: 1

Answer 1

>How do networks know what’s being views the most?

Let me tell you about [a company called Nielsen](https://www.nielsen.com/us/en/solutions/measurement/television/). They are *the* name when it comes to network analytics and ratings.

Nielsen deploys monitoring devices to selected “Nielsen Families” (and elsewhere along the datastream) that measure a statistically relevant slice of the population, and then perform data analytics on those slices to arrive at useful representations of the entire market space.