I didn’t really have a “#4” in mind. He could be one of a dozen reginoal favorites or Rush fill-ins. Mainly I don’t want to “date” the piece with a real-life name.
That was kind of my guess. Generic conservative host, possibly regional, not modeled after anyone in particular. It was something you were dashing off in a day, after all. No point it thinking too deeply into it unless you were writing a much longer story.