I was up early on Sunday and listening to a reroll of John Oakley's "Topics Worthy Of Discussion" from Thursday. It aired in the hour from 6-7AM, but I didn't get to hear the entire thing clearly. 

That's because much of the segment was constantly interrupted by stingers and liners saying, "This is breaking news from AM640." The problem: there was no breaking news and the liners kept interrupting the replay. It happened at least five times with no explanation. 

I know there's someone in the control room - they have a live morning show that starts at 7. Computer glitch? A board op listening to something accidentally leaving the pot up? Either way, it was very odd to repeatedly hear warnings of an urgent announcement and never hearing any actual announcement. They may need to check their equipment.