i really dont know know much about these so.... help ! I have Dolby Pro-Logic Telly complete with optical slot. Also a Humax pvr8000t digibox with same slot. Is there any point conecting these 2 slots up with an optical cable or does the digital audio signal go into the telly via the scart ?? or or are these optical slot meant for connection together to an auto changer box then on iinto the optical slot on back of a stereo ???