I saw one episode of that just a few days ago...after 15-20 minutes of watching both MANTRACKER and his quarry, my skeptical brain said.."Hmmm...he is following minute tracks and using clever tricks to evaluate where they are....You don't suppose the **camera crew** that is right with his quarry is any clue?"

(Same goes for several series where you gotta wonder how the camera crew got ahead of the star for that revealing shot)