Why is your DTV receiver special? Is it the HR24?
If so, I have the same receiver. I have a CT350 and everything runs through the HT and works beautifully. Why do need to run direct to the TV, rather than the HT?
I have a HR21/100 DVR, which works great going through my soundbar, except that the 3D channels (ch 103 - 106) doesnt seem to play nice when it runs through my HT-CT150. 1080i 3D shows play fine, but 1080p and 720p content I have issues with. I have a HR24 in the bedroom, I may hook the TV up to this unit to see if this can be fixed by updating my Receiver.
Right now I simply have a HDMI cable running from the DVR to my NX810, and an optical toslink going to the back of my HT. My DVR wont push any audio output a toslink wont be able to handle, so this setup is just as good.