You picked up Philadelphia in Hawaii in the 80s--WOW! Even in the "clearer" channel days of the 70s when I was first out there I never heard anything east of Chicago.
I'm guessing you must have heard WCAU?
I can't remember I use to log all my dxing. Both stations faded in and out a few times then that was it. The funny part is at times I can't even pick-up KLIV in my home town.