Back in my radio days we started playing one Christmas song per hour, the day after thanksgiving.
As Christmas approached, we would increase the hourly play gradually but the only days we would play almost all Christmas songs was on Christmas Eve, and Christmas Day.
The week between Christmas and New Years, we’d still play one or two an hour just to keep the holiday spirit alive. On January 2nd, we’d put all those songs away for another year.
It worked well.
This was the way it was when I was growing up...I wish they’d all do it this way today...It kinda weans you down after Christmas instead of just shutting it off....