sentences:  The station signed on the air on January 1, 1974 as a sister station to WIBX and ran a beautiful music format under the call letters WIBQ.The station abruptly changed format in 1985 to classic hits as "Z 98.7" with the call letters WNYZ.After a while in the format, WNYZ next flipped to a rock-leaning Top 40 format, identifying as "New York's Z-98.7".