I sent support a link to this thread. I doubt it will help any.
See this thread:
TL;DR same CPU used on the DT/DN/DT2/DN2, the DT2 added a DSP chip and the DN2 doubled up the CPU. TV using different platform completely Linux, verses the bear bare metal of the DT/DN/DT2/DN2
and also note that I bug I reported about the DT2 also existed in the DT1 (same codebase was used) and they fixed it on both.