actually, what history channel -lost gold did was the right thing to do. its like they find the treasure and they shut up behind the scene. i agree with go deep. the must have found the treasure beforehand (or maybe not) but the drill on the side of the mountain was exciting and appealing to viewers.
if however they found the treasure, let me point out that under our existing laws, whatever video or intellectual property they have obtained from treasure hunting, the government automatically becomes the owner of them by default. so showing the treasure (if indeed gold was found on that boxes) on national tv needs the approval of the owner by virtue of default (government). if the government says "no" , you are not allowed to show the gold on television, then history channel has no say on that. its just a theory based on the prevailing law (national heritage act of 2009 and its implementing rules).