My favorite Road Shows are when some know-it-all brings in valuable object they "stole" from ignorant dealer and thing turns out to be valueless copy, worth tenth what they paid. So I enjoy watchin these experts, loose big bucks.
All time fave road show was smug guy loaned friend some big bucks knowing friend was desperate and could not pay back. Friend had to put up civil war collection, that know-it-all knew was valuable, as security, but knew friend was too stupid to realize value was much greater than loan. Turned out all stuff was copies, much less than loan. Rubbed some rust (actual blood from battle?) off sword, "made In taiwan." Inside canteen was receipt from Battle Field souvenir shop. Appraiser was trying not to laugh at " who screwed who" ( and authentic musket had Phillips head screws) as he explained how folks bury stuff in manure piles to make it old real fast. And somehow had kept straight face as know-it-all piled on manure at beginning explaining how he was expert in Civil War memorabilia.