I believe the rating is the percentage of total TV audience.  If there were fewer people watching all TV programs last year, you could have a higher rating for the Cup race but fewer people watching the race.  
Think of it as a slightly bigger slice of a slightly smaller pie, giving you less pie overall even though the slice is larger.
				
			Think of it as a slightly bigger slice of a slightly smaller pie, giving you less pie overall even though the slice is larger.
 
	 
 
		 
 
		 
 
		 
 
		 
					
				 
						
					 
					
				 
 
		 ... based on the stats, in 10 years TV will be dead.
   ... based on the stats, in 10 years TV will be dead. 
					
				 
 
		
 
					
				 
 
		 
					
				 
					
				

 
 
		 
 
		