IIRC, ABC News had the tapes first. They were for sale on the church’s website. Hannity dug into them and the rest is history.
Well, that narrows it down. I don't watch ABC, so it had to be Hannity or an article on FR that clued me in. Since I come to FR more than Fox, I will give the credit to FR. That's just one of the reasons that I donated to FR.