you would need to run a digital audio signal to your receiver ( i assume you mean its an A/V receiver and not a stereo one). The cable you need depends on the TV's audio out and receiver's audio in; HDMI, optical, or coaxial
It is an A/V reciever......do i use the 5.1 ch or the TV a/v in hook ups on the reciever ? Do i need an S cable ? Also they're RCA jax !!