ANTIQUES ROADSHOW is in Idaho, mining the Gem State for hidden treasures! Host Mark L. Walberg and appraiser Gary Piattoni head to the Old Idaho State Penitentiary to discuss what type of law enforcement collectibles should be locked up in the vault. Highlights include a mid-century pinup painting by Earl Moran, whose work rises in value the more scantily clothed the model; a complete set of lobby cards from the 1951 film The Day the Earth Stood Still, a film the guest spent nine cents to see in theaters; and an inherited 1922 Edward Hopper etching titled The Cat Boat, appraised for $250,000.