caught you again

     I have been watching "Cold Case" again, partly to see if I could catch them in an error ( not just an invention ) about our fair city of Philadelphia, the setting of the show. The episode I watched tried to move a part of the city of Philadelphia. One of the characters on the show referred to Chestnut Hill, a prosperous and historic Philadelphia neighborhood, as part of the "Main Line". The "Main Line" is not a generic term for a swanky neighborhood. It refers to the main train line of the old Paoli and Western, or "P and W", now the "Paoli and Thorndale", which misses Chestnut Hill by a few miles.