When it comes to getting the right details into your story, my feeling is "the audience doesn't notice, but they notice." To unpack that a bit, the audience sees all sorts of details they aren't aware they're seeing. They don't consciously read them, but they process them. In particular they notice when they are wrong. They might not bump consciously, "Hey, that's wrong!" But they'll get a sense that something isn't right.
Here's an amusing stunt pulled on a couple of ad writers who didn't notice all the messages they were being exposed to...
Not buying it for a second. NO WAY. There is just too much scientific evidence that supports the inability of marketing to impact people in this "direct" way. How could he have known that other advertisements would not have had a stronger influence over the pictures and images he planted? This show is a hoax, a fraud or both.