Pittsburgh, Hour 1 Antiques Roadshow : Season 16 Episode 7

Part 1 of 3 in Pittsburgh features intimate letters between Cole Porter and actor Monty Woolley; a circa 1920 silk Kashan rug; and a 17th-century rhinoceros horn cup, purchased for one dollar at a flea market, worth between $350,000 and $450,000. Also: a visit to the Andy Warhol Museum.