TV hdmi to RCA dual jack logitech or rca out to rca in?

[rob_LVNV]

what is the best possible scenario for my situation: I have both an HDMI out port and RCA out port on my hdtv; on the back of the logitech, i have available the green computer port and the two plug RCA ports into the sub. Trying to enhance the sound of my bedroom tv. Should i use RCA to RCA or HDMI converted to RCA cable? thanks in advance for any feed back..

 

[americanaudiophile]

There is no advantage to using an HDMI audio extractor to give you an analog output over using the one on your TV.