A client just emailed me because her publisher's in - house publicist scheduled a radio show interview for this afternoon, and the radio show producer didn't call. (bookpr.com)
So let's say that a TV show producer reads your book and contacts you directly to offer you a spot as a host on TV that has nothing to do with your book. (literary-agents.com)
In the second case, a radio show producer requested a copy of book, and the author questioned whether it was worth complying with the request. (bookpr.com)