It was down two nights ago when I checked (was hearing an oldies station) and then briefly back on early this afternoon, before dropping. It was stable on my way home around 7pm tonight so I assumed they finally fixed it. The antenna being root cause is what I was wondering, as it is perched on a commercial rooftop. The moisture from the melting snow may have penetrated it. I had also noticed even a couple of weeks ago that their signal was quickly dropping.