Hi, I am adding a 4th receiver for my daughter's bedroom.  I have already activated her card, and my husband thought he had it hooked up right but my daughter's and son's programming are screwing up.  He said he just has a splitter on it but that's not working.  Exactly what do I need to purchase to make this work?  I have a Circuit City right by my office, so that's probably where I will go.
				
			
 
	 
	 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		
 
 
		
 
 
		