I think I'm missing only two of his early appearances. But, some of my copies are not of good quality. Some of his early stuff was only ever available on VHS and the rips made from them were not very good, but they are better than nothing. I'll see about making more of them available for download from the media archives. In the meantime, check under the category Unobtainium in the Media archives for stuff you may not have seen yet.