Board Thread:False Info and Speculative Discussion/@comment-24732895-20140910035928/@comment-4091815-20140912001409

The Nielsen system works in a few different ways.

1. people keep a log of what they watch. If they don't write it down it doesn't count. If they're not watching on a television set it doesn't count.

2. Set-Top boxes actually record what is playing on the TV at any given time.

3. PeopleMeters are devices worn on the body. They listen for inaudible signals broadcast over television which identify the show being watched at any given time. At bedtime, users plug those devices into a device that transmits the days viewing to Nielsen.

None of these methods show viewing on anything other than traditional television sets.