I have tapes of the run. I was very disappointed that they stopped at about Season 3, Episode 6 for Leonard's run. I had gotten too busy to get all of Bill Shatner's run so I was trying to fill in Season 3 with Nimoy's run. The story I read was that SciFi Channel was under new management and the new management never saw the value of the project, so they quit airing it without notice.
Thank you potablog for doing this. If I can help anyway with the project, please contact me.