As a DJ on former smooth jazz station KNJZ, I was required to say every so often, "You're in the middle of another extended set of today's smooth jazz."
I understood the business logic behind summarizing the type of music we played and reinforcing the concept that listeners were going to hear a lot of it. I also thought, however, "Isn't this interrupting the musical flow by reminding listeners of this, using this exact phrasing, so frequently?"