Dear Gentlemen, Greetings, I'm so impressive due to the rich experiences and technical information I found on avforums.com, which encourage me ask about the best way of connecting / wiring my following stuff: TV: SAMSUNG SMART TV 55H7000 HDMI IN PORTS: FOUR (4) HDMI 1 (STB) highlighted by yellow. HDMI 2 (ARC) HDMI 3 HDMI 4 (DVI) HOME THEATER : SONY BDV-N990W HDMI IN PORTS: TWO (2) HDMI 1 HDMI 2 HDMI OUT PORT: ONE (1) (ARC) SATELLITE RECEIVER : HUMAX IR3000 HDMI OUT PORT: ONE (1) MEDIA STREAMER & RECORDER: XTREAMER PRODIGY 4K HDMI OUT PORT: ONE (1) HDMI IN PORT: ONE (1) Xtreamer Prodigy 4K GAMING PLATFORM: PLAYSTATION 3 + XBOX 360 HDMI OUT PORT: ONE (1) FOR EACH Now, my questions are as follows:- 1. What is the best way to connect all of them using 1.4 HDMI cables in order to achieve the maximum benefits and getting 5.1 surround sound from any source? 2. What is the extra benefit(s) of HDMI 1 (STB) in my Samsung TV rather than other ports (of course except HDMI 2 with ARC)? 3. is there any extra benefit(s) of connecting any device whatever the TV or the bluray with extra digital optical audio cable (S/PDIF)? 4. What is the deference between the following audio formats? and Please confirm which option shall I set? by other words: how cloud I determine the Bitstream / the audio is encoded with? Finally, thank you very much for your time, efforts, kind cooperation and support. All the best.