WTAM is actually one of the regular out-of-town nighttime catches for me here in Manhattan. There aren't many at my place, with all the signals in NYC in addition to tons of interference in my 'hood. When driving around the burbs here in the early evening, I've frequently heard WTAM coming in very strong.
The few AM signals from outside NYC I can pick up regularly are WBAL from Baltimore, WFED from DC (the former WTOP), CJBC Toronto, CHAM from Hamilton, ON, and sometimes CJAD Montreal and WBT Charlotte. It's slim pickings around here, a sad state of affairs for this DX aficionado. So I love to travel!