I have a Bose Lifestyle 50 HTS (circa 2000) and want to play the audio from the tv thru the systems speakers.  The Bose unit only has RCA ports -  no digital optical audio or HDMI.  The tv is an LG LED model 55uj6540 but it only has HDMI and digital optical audio - no RCA ports.  Is there some type of splitter that can be purchased to convert to RCA?  If so, what is it called?  Many thanks.
				
			
				
		