Newer D* subscriber with newer JVC plasma TV.  Since all was installed I noticed the tv volume suddenly goes up a few notches (don't see it change on the on-screen display)...it just gets louder.  Also, some channels (particularly Fox 29 Phila) color intensity fluctuates from soft to dark and back constantly.  I doubt it's weather or obstruction related.  Any ideas?  Is this consistent with satellite vs. cable?
				
			 
	 
	 
 
		
 
 
		
 
 
		 
 
		 
 
		