I just purchased my first HDTV (Samsung 40" LN40A550), Toshiba DVR (DR410) and Yamaha Home Theater System (YHT-390BL). I also subscribed to Direct TV with the HD receiver (they are coming this weekend). My first question is what is the difference between HDMI Input and HDMI Output? Secondly, I would like to know how do I connect to get surround sound from my TV and my DVR? Is it also possible to get regular sound from my TV when I'm just watching a normal tv show and I don't want surround sound, or will I get surround sound everytime I turn on my TV? I also purchased (online) 3 HDMI cables, but didn't purchase any other cables. I still have the red, white, blue cables from my old TV. Thanks for any help you can provide.
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