Probably well-before Endemol's first high-profile foray into Dutch 'Big Brother', and certainly eased into group consciousness by supposedly-vérité programmes such as 'The Osbornes'...

Here's a gut-feeling from me regarding humanity, which I wish I could substantiate. I bet acceptance/belief levels regarding classic 9/11 imagery and related content is much higher amongst people that unquestioningly absorb these 'reality' TV shows. Perhaps most forum members and visitors consider this to be a self-evident truism, and, yes, you'd be right. But you're reading this just now...you're able to detect the gaps in the scenery, pick-up on blindingly-obvious falsity...you've probably not got many problems with your 'visual eyeQ'.
Just how do we educate those that have excellent vision, yet an inability to see?