I'm planning on purchasing the VIZIO E601i-A3. I would like to be able to take advantage of the Dolby Digital+ signals that I understand are available from Netflix on this TV. My current receiver does not support Dolby Digital+ and I'm hoping to get one that does but am not very familiar with HDMI. The VIZIO E601i-A3 does not appear to have an HDMI output but does have a digital audio output. Does the HDMI on the VIZIO E601i-A3 have some kind of audio return channel to the receiver? Would any receiver that has DD+ support this return channel?