I'm not sure I understand exactly what you're asking, but if you are wanting to have separate 2-channel and 5-channel speaker systems hooked up to the same receiver, the answer would be it depends on the receiver! If the receiver you want is seven channel, there is a good chance you can do that. I have a Pioneer Elite VSX-55TXi, and it will let you do exactly what (I think) you are asking. Hope this helps.

I'm not sure what you mean either, but you should be able to turn off the speakers on the TV and use the audio out on the tv to plug it into the aux input on the receiver. Then you'd only be using the Stereo system for sound. That is basically how my system is set up now.

Yes - if the receiver has the capability (and I believe it does).