Denver radio station KOSI 101.1 has announced the date and time of its annual switch to nonstop Christmas music. This is the 23rd year that KOSI 101.1 FM will change to an all-Christmas music format.
DENVER — A Denver radio station has made the switch to an all-Christmas music format for a 23rd year. KOSI 101.1 flipped the switch to nonstop Christmas holiday music at a live event Thursday.
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