theprof00 on 08 April 2009
nielson families are houses that have a special device attached to the tv.
The tv records all activity and each user gets a password. Each user must enter their password before doing anything with the tv. If they leave the room for whatever reason they must turn off the box and then re-enter the password when they return. A password must be used for a everyone using the tv.
Oftentimes these families have more than one tv, so the viewers turn on whatever channel another room is watching, if the primary user is not using the set.
This is not completely based on checking boxes off on a slip of paper. Those reports are only used as supplemental information whereas the actual set-boxes themselves are the primary means of information gathering.
