help with audio and cables

[mercury187]

I am currently researching home theatres and am probably going to get the Onkyo 605, I currently have a comcast hdmi digital cable box and a xbox360. The comcast box is connected to the tv via hdmi and the 360 is connected using component cables, this leads me to my next question, how would I connect these to the Onkyo 605? I was reading some posts in the home theatre pics thread and someone said they had their 360 connected via toslink. I went to look this up and found: http://en.wikipedia.org/wiki/TOSLINK
My tv has a audio port on the back of the tv that looks like theres red light coming out of the audio port, is that toslink? Is this how I would get surround sound out of my 360? I know the AV connector on the 360 has a port where something like this toslink cable can be connected to it but im not sure what cables I need. For the comcast box, does anyone else here have one? I believe they have the same port with the red light coming out of it but would I want to use that kind of cable or would I just run HDMI from the cable box to the reciever and then HDMI back to the TV??? I also want to get a ps3 and I believe that would have to have HDMI going from PS3 > receiver and then receiver > tv? so i should do cable box hdmi > receiver hdmi > tv so then all I do is connect ps3 hdmi to input and its already got hdmi > tv from receiver?

I noticed toslink doesnt support TrueHD and DTS HD streams.


Any help and information about all this would be greatly appreciated.