that white noise you see on top of a analog signal is not just CC as that happens on line 21 on analog TV and on line 9 on HD tv.
That bar will always be their because it not only hold close caption content but it will hold the AFD. It also hold time code and other information the networks need to know that is their as a quick reference.
“An engineer explained to us that hundreds of ear impressions were gathered in the name of research, and while each one obviously boasted its own unique shape and size, one single characteristic remained uniform across the board: the entrance into the ear canal is not a perfect circle, it's an oval.”
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@Jeff
that white noise you see on top of a analog signal is not just CC as that happens on line 21 on analog TV and on line 9 on HD tv.
That bar will always be their because it not only hold close caption content but it will hold the AFD. It also hold time code and other information the networks need to know that is their as a quick reference.