Why do people still use Nielsen Rating system when its incredibly inaccurate?

[TWRoO]

twesterm said:

TWRoO said:

twesterm said:

TWRoO said:

They should just put cameras in all your TVs so they can know when you are watching.

I also watch TV sometimes while doing chores or cooking in my kitchen.  In those cases a camera wouldn't see me.  

Kinect actually does do a good job of knowing when you're in the room and when you're not.  When I'm watching something on my 360 and let it idle, the screen dims.  The moment I walk back in the room the Kinect spots and it lights back up.  Still though, doesn't solve my above problem.

How exactly are you watching TV if you are in another room?

Open floor plan, yo

Then if you can see the TV why couldn't a camera view you?