Today, TALKERS magazine managing editor Mike Kinosian does a deep-dive into the recent performances of the all-news format during Nielsen Audio’s “Holiday” PPM ratings period. He writes, “Ever since Arbitron (now Nielsen Audio) instituted the Portable People Meter as ratings currency in 2007, the ‘Holiday’ ratings period has been a veritable goldmine for stations employing the wall-to-wall Christmas music programming strategy. Adult contemporary comprises the overwhelming majority of those outlets. Usually substantial, however, is the negative impact on many other formats in ‘Holiday’ sweeps.” See his analysis of the past four “Holiday” surveys here.