Had that Same Commercial here in L.A. in 83 for WCBS 880's Sister Station KNX 10.70 (Now 97.1), Regarding the Roper Report, i even have a Photo of the Bus Ad for KNX 10.70.
Right, but they were rivals when these ads were made. Westinghouse Broadcasting (former owner of WINS) merged with CBS (then-owner of WCBS) in 1995. en.wikipedia.org/wiki/Westinghouse_Broadcasting (See “merger with CBS” heading)