Looks like, at least to me, KMTV is suffering the same problem that I believe WOWT was a few months back with their PSIP server causing my OTA receiver to reboot every two minutes or so.
I have a Samsung SIR-T150 and it's happening regularly. Every two minutes, the image freezes, I have about two to three seconds of the last say .2 seconds of audio looping over and over, then the box reboots itself.
I looked at the guide and I see your PSIP data says "KMTV 1080i/29/15M 1" so something is getting broadcast.
Jay at WOWT contacted their software vendor and apparently there is a fix for this.
Otherwise, great work! I am getting a good, strong signal in Millard with just a rat shack double-bowtie antenna.