Some televisions these days have the option of either a fiber-optic output or an HDMI output (or sometimes even both) just for a surround sound system.  However, this isn't always the case as most sound systems these days are part of an all-in-one package where the central unit is a DVD/BD Player, Digital/Analogue TV Tuner, Surround Sound Processor and Amplifier, and an iPod/iPhone Dock.  Some even offer Digital Video Recorder capability, but some people just hook up their PCs to the system.  (If you have AppleTV, then this is a foregone conclusion.)
Quality of sound has grown to such a degree of ease to replicate that even the least expensive systems can give you a great audio experience. My recommendation is to consult Consumer Reports to get the most bang for your buck.
	
	
	
Quality of sound has grown to such a degree of ease to replicate that even the least expensive systems can give you a great audio experience. My recommendation is to consult Consumer Reports to get the most bang for your buck.

 
 

 
