Composite and HDMI simultaniously

I am thinking about buying a WD TV Live, just have one isue.

I have an old AV receiver, which have neither Optical Link or HDMI.

Is it possible to use the composite and HDMI simultaniously?

The composite, for sound only, for the AV receiver. And the HDMI, for video only, for the TV.

Yes, you can use the HDMI for audio and the composite for audio at the same time.