Destroyed???? Not possible. Any thinking American had long ago dismissed Blather as just another partisan hack making the news to suit his agenda.
Unfortunately you are mistaken here. There are many shutins and invalids who watched cbs because it had been a source of legitimate news. As they grew older, they did not move along with the technological chances and access things such as cable or the internet. They did not realize that cbs was so parisan because they had nothing against which to make that judgement. It was their fault to be sure, but it wasn't because they lacked the intellect, just the fear of something new. Even today, there are many who watch only cbs and are not aware of the facts behind the forged documents.