As it turns out, then, the last World News Roundup heard on KCBS was yesterday. Wish I had thought to record it.
Here's what happened this morning:
7 am: Steve Scott throws to the World News Roundup.
After the music bed for the legal ID fades out, silence.
Seven seconds pass. Steve says, "No, really, it is 7 o'clock".
Five more seconds of silence pass. Steve says, "All right. Apparently, there is no CBS World News Roundup at the moment. Good morning, I'm Steve Scott, and we will move on with news from around the Bay Area".
And that was it...all local content for the eight minutes usually taken up by the World News Roundup.
Steve handled it very smoothly. I think most listeners tuning in at 7:01 or thereafter wouldn't have noticed that anything had gone wrong.