Edited sentence: In the case of New York radio industry experts condemned taking a successful station that even non-listeners considered to be a local "cultural icon" and changing it without warning to an untested format that has only existed a couple of years.Jack FM's arrival in NYC and the end of WCBSFM oldies will sadly be remembered by New Yorkers as the day the music died.On June 3, 2005, WCBS-FM introduced the format to New York City (and simultaneously, WJMK to Chicago); these moves were more controversial than in other markets because they were extremely quick compared to most radio format changes and resulted in the sudden firing with no warning of long-standing DJ's of historical significance