According to many obits I have seen it seems that the non-briadcasting of his old material was due to his having evidently signed off the right contracts and retaining control over them and not wishing them to be broadcast.
Hurrah! I have just had permish to dump the spam-and-profanity filter which was applied to our server a couple of weeks ago. So far, it has removed automotive industry press releases, blocked the delivery of commissioned photographs, wiped out a message from my sister in the US telling me that the birthday present to my neice had arrived safely, and finally, today, blocked access to a website belonging to the main Essex newspaper. F*cking filters!