- #1
Sophia
- 112
- 565
Hello,
OK, i have this stupid question that has haunted me for ages :)
How do they measure the number of viewers in TV? They always show these graphs with thousands of people and even the changes in time. Like x people left during commercials. Or y people did not watch to the end.
How is it measured? Like, I know this a reaaaaaaly stupid imagination, but do they spend more energy to broadcast to more people? or are there some changes in the signal? Or are there chips in most modern TVs and they send the info back?
As you've probably guessed, I have no Physics education :)
OK, i have this stupid question that has haunted me for ages :)
How do they measure the number of viewers in TV? They always show these graphs with thousands of people and even the changes in time. Like x people left during commercials. Or y people did not watch to the end.
How is it measured? Like, I know this a reaaaaaaly stupid imagination, but do they spend more energy to broadcast to more people? or are there some changes in the signal? Or are there chips in most modern TVs and they send the info back?
As you've probably guessed, I have no Physics education :)