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					Originally posted by D_Man3379  I'm still trying to understand what this demo is. Is it more important than viewer audience or less? | 
	
 Demo = demographics. As in how old are the people watching the show. The one all networks care about - because the advertisers favor it - is the 18-49 range. People between ages 18 and 49 are the ones considered to be the main "buyers" of everything. And it makes sense, doesn't it?
So that's why you can have 16 million viewership and still be "in trouble" for having only a 2.2 average rating 18-49 - Dancing With The Stars last season, for example.
That situation happens quite often, btw. Shows like The Good Wife, Body Of Proof and The Mentalist have huge viewership numbers (usually over 10 million) but weak (around 2.0) 18-49 ratings in comparison. Grey's Anatomy gets 8 million viewers, but 3.5 on the demo. Who wins? Grey's Anatomy.