For me it was a radio show as well. It was in Fayettiville Arkansas on the rock station.
I recorded it as it aired and they took callers at the end. I stupidly called in (or looking back not so stupidly) and got on air. I was defending the jws. I got hit with calm logic. Brain exploded! The crack started. That was in 2001.
In truth, when I was about 8 I remember thinking that if I was the devil I would hide under the guise of "true worship" to mislead. Years later I came across Paul Harvey's speech of 'If I were the devil'. It clicked more.
Then Crisis of Conscience. Which I read several times over.
An elder also said a comment at a book study he was presiding over where he flat out said that there no way only 6-7 million people would be saved(late90s). He quickly moved on with the study, but I never forgot it. He and his wife faded shortly after but I didn't know at the time that's what he was doing.
Long story short, it was little cracks over several decades, until there was a gaping hole I could not ignore.