Unfortunately, the only thing truly eluding Josh Gates and his crew is a reason to stay tuned. One can only stomach so many fleeting glimpses of whatsits through these devices, which have become the crutch upon which the show limps, before groaning aloud, begging for something more concrete.
To the show, the benefit of these gizmos is obvious: it provides tantalizing "evidence" to examine and keeps the viewers hooked.
However, unlike Ghost Hunters - Destination Truth's more disciplined cousin - Josh Gates and his team don't often take the time right then and there to explain their thermal anomalies. These images are seldom corroborated by standard or infrared video, which would, at the very least, establish scale and relative position. Is that a tree? A boulder? Is it that thermal target standing atop the rock or rising up from behind it?
It strikes me as I watch the show that little can be discerned by the poor resolution of a device that was inarguably built for an altogether different purpose. This isn't the military/law enforcement grade FLIR used to track targets from helicopters above. This is the type of device used by individuals in the Air Conditioning and Heating industry. So, while it might provide supporting evidence, Destination Truth is foolish to rely so much upon editing images from this gadget with cuts to the fearful faces of assistants.
Speaking of which...
Spare us the reaction shots from frightened but otherwise useless "assistants" who contribute little more to the expedition than being "scream queens".