Show through actual study that coincidence is higher than random chance would allow.
Oprah having been obsessed about the book, and then being called in for the movie seems so unusual...but if someone else had been called instead of her, she wouldn't have her connection, someone else might be on Larry King talking about their own strange coincidence, and still there are others who were attracted by the book, but didn't get the part. Or, someone could have been called in to do the part, and never read the book before, and there would be no story.
And Oktober, a clock ticking is just a consistent measurement of change, which is what time is.