Thanks RadioJonD! I've listened all day, and none of my local stations switched over today as Nov. 1st.
Next most likely chance will be this Friday. The Transiberian Orchestra is coming to town that night, and so I can picture at least one of the local radio stations using the occasion to flip over to Holiday format.
So, having read through your thread, can I double check: Which 4 radio stations (to date) have switched over to Christmas music?