The undefiled videos from archive.org can be made into one continuous video with various free software for those who prefer that. It's fun. Download the MPEG2 files, the largest ones. Those are the best quality. I use MyFFVideoConverter to edit but there are probably better programs.
NW7US logo - This is a contender for the
Shining Badges Of Self-Aggrandizement award.
Why do hams do this? Watermarks on every page of a manual one did not author is just as bad. Neither annoyance will "keep people from selling them on DVD on ebay" so that old horse is long dead and that dog won't hunt. Where is the public service spirit among some hams? Giving back to the hobby? The right place for a self-mention is in a discrete place not messing up the content. A continuous logo or watermark is not "content".