I don't think you have any idea of how lousy the reception was of the average American television set in the 1960s, even an expensive large set in a house right next to the broadcast tower. Even if this youtuber's assertions are true (and I don't think they are, since it's been "enhanced" by him), nobody's subconscience let alone actual consciousness would have been able to pick it out amidst the 525 scanlines of 30fps interlaced NTSC "snow" noise pixels the size of pencil-erasers.
Old-school filmmaking: they shoot a frame or two, then manually adjust letters as it were claymation, then shoot another few frames, etc, then project the finished product on glass behind which. It was agonizingly slow, which is why most shows back then had intros and outros that remained unchanged for years at a time. (Contrast to today, where we were subconsciously annoyed were we didn't get a new mechanical city update in the "Game of Thrones" opening every other episode.)
The stuff was no easy in the least. (I forget the name of a documentary that focused on the making the 1977 "Star Wars" famous title-crawl, and how much of a pain in the ass it was.)
I don't think you have any idea of how lousy the reception was of the average American television set in the 1960s, even an expensive large set in a house right next to the broadcast tower. Even if this youtuber's assertions are true (and I don't think they are, since it's been "enhanced" by him), nobody's subconscience let alone actual consciousness would have been able to pick it out amidst the 525 scanlines of 30fps interlaced NTSC "snow" noise pixels the size of pencil-erasers.
One thing that is real is that they used this type of subliminal messages in supermarkets to discourage theft.
https://www.upi.com/Archives/1984/08/06/Stores-use-hidden-voices-to-prevent-thefts/9779460612800/
On this video I wonder if the lettering effect isn't ahead of it's time... there were no computerized lettering at that time.
Old-school filmmaking: they shoot a frame or two, then manually adjust letters as it were claymation, then shoot another few frames, etc, then project the finished product on glass behind which. It was agonizingly slow, which is why most shows back then had intros and outros that remained unchanged for years at a time. (Contrast to today, where we were subconsciously annoyed were we didn't get a new mechanical city update in the "Game of Thrones" opening every other episode.)
The stuff was no easy in the least. (I forget the name of a documentary that focused on the making the 1977 "Star Wars" famous title-crawl, and how much of a pain in the ass it was.)
Yes, but the difference here is the way the letters are animated separately, still, it could be.