When I was living in SW Virginia several years ago, KYW used to blast into my region. WPHT - not so much. I was never able to pull in other Philly stations down there.
Growing up in the 60s, in my home area of SE New York (Orange Country), during the day WPHT (then WCAU) was a regular as was WFIL and, on occasion, WIBG. KYW (then WRCV) was nowhere to be found because of their tight null in that direction that protected 1050 in NYC. WIP was sometimes heard, but was VERY weak. In retrospect, that was a great place to live for a budding DXer. I was just far enough away from New York City that adjacent channels to NYC stations were not difficult to pull in. The only local channel was 1340 WALL, so it was easy to grab stations from pretty much every direction.
On FM, the only Philly station I would pull regularly was WMMR. When there was troping, however, 99.5 in Wilmington would regularly block 99.5 in New York City.
With my father being a TV engineer, for TV we had a huge log periodic antenna with a preamp and rotator, so I could get all of the Philly VHF stations (3, 6, 10, and 12). I vividly remember Ch 12 signing on about 5PM and giving their transmitter location as Glassboro, NJ.