It is a really neat experience so far. Now it is done electronically. Each TV in the household is wired into a central data collection location. Each TV has a " People Meter" box on it. Each member of your household is assigned a number and when you are watching you need to make sure your light on the box is lit. When you change channels you need to make sure that you hit another button on the box. Then once each day the information is sent via telephone lines into the office.
When they wired our home it took a full day to do all 3 TV's, VCR's and DVD players and the men doing the work couldn't have been nicer. They gave us a crash course in working the people meters and said they would call if we weren't doing it right. We must be doing well because they haven't called.
We also did it because we watch a lot of BBCAmerica, Food Channel and other such shows and not mainstream TV. They stress not to change your TV watching habits just because you are a Neilsen Family.
I say give it a try. If you find it is too much for your family you can withdraw from the program any time. I think the time committment vaires, we have signed on for 2 years, but again you can withraw at any time.
Linda