A few things...
There's a new Doctor Who rumor online that more found episodes are on their way- supposedly they are being restored/remastered before an official announcement is made by the BBC. Supposedly the entire "Marco Polo" story with Hartnell has been found, but then again, it's just a rumor.
Someone asked about the 1965 Robert Horton western Shenandoah. I have a theory as to the fate of the missing episodes. The show was on ABC for the '65-66 season and was not renewed. As far as I know, it was never seen in reruns until it was shown on TNT decades later. Since it was never syndicated into reruns, the masters lay in its studio valut. The studio in question was MGM, which produced the show. Maybe the missing negatives were casualties of the 1967 vault fire: http://en.wikipedia...._MGM_Vault_fire
Considering the upcoming 50th anniversary of the JFK assasination, don't be surprised if we see more of the archived video footage of the event. Both CBS and NBC saved the videotapes of the coverage of the story as the news broke. I think for either the 25th or 30th Anniversary the History Channel ran the entire B/W tape of the first few hours of NBC's coverage with Chet Huntley and Frank McGee as the events played out, and it is stunning to see the newsmen getting the details from correspondents via phone, especially the first report that JFK had died (from a priest who gave last rites). I had seen the special when it first aired, and it's on YouTube (it's several hours long, but there's only audio for the first 6 1/2 minutes until the video image shows up- remember, this was a cut-in and the NBC News cameras had to be switched on) http://www.youtube.c...h?v=Uf50Bd86RHY
Amazingly, I understand that the Kennedy Inauguration had been broadcast in color over NBC in 1961 and the videotape was later erased!!