Recently I've had a couple of quite unnerving examples of this while listening to radio interviews. i.e. an overwhelming sense of having heard the exact words before, and being aware of what was going to be said before it was actually uttered.
Now, I know this not to be true because the subject under discussion was something that had recently happened, so I couldn't have actually been remembering a previous interview.
I haven't looked for any scientific explanation yet. Thought ASF members might have something on this, and/or some experiences of your own to share.