No audio coming through Home Theatre. Please Help!

to clarify...

it seems as if you have all inputs (blueray player and pvr) going to the tv and then an optical audio cable going out to the HT system.

the ports should be labeled "input" and "output" to help you figure out whats going on.

correct?

my guess would be that perhaps you disabled the optical output port in your televisions menu somehow.

hopefully its not a hardware problem but it could be.

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what kind of HT system do you have?

is it one of those cheap HTIB units or do you have a true receiver and speaker setup?

typically i would say to route the inputs through the receiver and then passthrough the video to the tv as this is the way i personally go about it and it works very well. this only works if you have a receiver capable of doing this and if you are using the right inputs.

let us know exactly what equipment you have hooked up the model numbers should be on them somewhere. blueray should be using a hdmi cable (or at minimum composite cables) so i'm not sure why you have RCA hooked up (at least this is what it sounds like you did... not sure without more information)