Like all these programs, made for the general public, not the knowledgeable enthusiast. I saw one a few days back, they were searching for a Schwimwagen in Normandy.
Found it "eventually", in a farmer's barn. A bit of a rusty bodyshell, with what appears to be shrapnel damage. Still got its SS registration plate visible.
Old French farmer wouldn't part with it, even at Euros 60K!
Interesting to see what's still out there.
Treat it as a bit of entertainment, same as the other stuff on the History Channel, where clips of Spitfire MkXIVs are seen, when the Battle of Britain is discussed!