The Panopticon/Deleted images (VHS covers)

I was looking up The Five Doctors (which I just watched having acquired a second hand DVD of it yesterday) and noticed that some of the VHS covers were missing. Checking the filenames, knowing they must have been deleted, I noticed that two of the file pages were in fact redirect pages, and had been edited after file renames to link to different files. By reverting those file page edits, I was able to restore two of the covers, though a third is still missing. I wonder if this same problem has affected other classic era serial articles?