first let me say this is my FIRST htib. i am a complete newb!! got it all hooked up. xbox 360 plugged in HDMI into receiver. thats it so far, then went and got a optical audio cable that is plugged into my receiver then to the tv( have no idea if i need the optic cable or not) i guess i'm just looking for anyone that has one of these or knows some settings for it. i did auto calibration. seems to work good. but like i said am a big newb and i just need some suggestions on getting max sound. also should i plug my 360 into the tv or just leave it? have cable tv also, should i plug this into the receiver? do i need this optic cable? help please..........?????will give a great review once i know what the heck i'm doing.