CTV and OTA are both DIGITAL in most markets, and has excellent PQ and includes Dolby 5.1 on most broadcasts. I don’t know where you live, but at least that’s the case here in the USA, and I thought we were BEHIND the rest of the world.
I use an OTA Antenna on my Master BR TV (so I can watch a third program on the networks when the TiVo is busy recording two others on FiOS) , and am quite pleased that its picture quality is BETTER than what comes in over my Digital CATV, because the Cable operators do additional bandwidth compression compared to what the broadcast networks do. The networks have sole use of their own carrier, whereas CATV head-ends puts MULTIPLE logical channels on the same physical channel.
Besides that, DTS isn’t used in Broadcast TV. DD5.1 is, so that was admittedly confusing…
Call Samsung back up and ask them specifically: “Can my TV decode DTS digital streams from another device that is connected via HDMI.”
If the CSR tells you anything other than NO, they would seem to be contradicting their own documentation; there is NOTHING in the documentation that even suggests that DTS is supported on ANYTHING other than USB-connected devices. Even then, it doesn’t DECODE it to anything other than STEREO (just like your WDTV is doing), it just sends the DTS out the TOSLINK port to be decoded by an AVR receiver.
The specifications of the TV says that it supports “DTS 2.0+ Digital Out.” Right? That means all it can do is pull 2.0 channels out of a DTS core, and send the 5.1 out the digital output. But that is specific to the USB stuff; not HDMI.
You have proven it yourself in that your TV is not giving you AUDIO when set to DIGITAL. I can tell you certainly that DTS works fine on HDMI.
Now, the GLOSSYs seem to differ from what the Manual says.
If INDEED, it DOES support full DTS decode from HDMI, then apparently it’s sending bad EDID data to the Live telling it that it CANT do it, or the WDTV is misinterpreting it.