Back about 1963 or so, WGN Radio ran an ad in Brodcasting Magazine that seemed to claim that their signal on 720-AM could be heard from coast to coast. The ad said...."From the Tappan Zee (in New York State) to the Pacific Sea". Does anyone know if that was ever so? In this day of satellite radio and internet streaming audio, I've wondered if there was a radio station that was ever heard over the air coast to coast. Any ideas on WGN or anyone else?