Quote:
Originally Posted by cyth
OK, here's the methodology how NHK sets ratings values ( source):
The same number has been reported for the June 2010 survey. |
NHK has always maintained its own ratings system and has used "qualitative" ratings for years as well. However the ratings commercial broadcasters use come from
Video Research, a Dentsu subsidiary. VR maintains a panel of metered households the same way Nielsen does. There used to be a fairly detailed document about their methods which I linked to in an earlier posting in this thread, but it has vanished from the VR website.
You'll notice the NHK surveys only happen twice a year, so they clearly cannot be the source of the weekly ratings reported in this thread. I'm pretty sure the VR ratings refer to households, though they also provide demographic breakouts to their customers because they use "people meters." These meters have buttons representing the various family members. The members of the metered household are supposed to press their buttons to record their presence when they are watching the TV. You'll see some of the demographic breakouts in some earlier postings in this thread.