So I'm getting no HDMI Audio at all when I hook up my PlayBook to my Vizio M3D460SR. I've enabled HDMI audio on the PlayBook, restarted it a few times, even wiped it. Still not working. I have a Kindle HD Fire that works as it should using the same HDMI cable to the television. The PlayBook's HDMI audio works fine on my Sony Bravia set which leads me to believe it's the tv but since it's playing HDMI audio for the Kindle Fire HD just fine, it makes me wonder... So would it be the tv?