Image description: a screenshot from the Wikipedia page for the Doctor Who TV series, with a user-added caption that reads "Preserve the media you can before it's gone forever." The Wikipedia article reads, "No 1960s episodes exist on their original videotapes (all surviving prints being film transfers), though some were transferred to film for editing before transmission and exist in their broadcast form. [88] Some episodes have been returned to the BBC from the archives of other countries that bought prints for broadcast or by private individuals who acquired them by various means. Early colour videotape recordings made off-air by fans have also been retrieved, as well as excerpts filmed from the television screen onto 8 mm cine film and clips that were shown on other programmes. Audio versions of all lost episodes exist from home viewers who made tape recordings of the show. Short clips from every story with the exception of Marco Polo (1964), "Mission to the Unknown" (1965) and The Massacre (1966) also exist."
There's all the remasters and tweaks as well. Star Wars is the obvious example, but even things like Red Dwarf got messed with with awful looking CGI plastered in.
At least they realised Red Dwarf tinkering was a bad idea and the originals still safely exist. I think they said they used the original negatives for Star Wars which were spliced and used for the Special Editions. They kept telling the public the original negatives for untouched Star Wars no longer exist. I can't believe that's true though. George keeps a copy of everything. There even a cut of Star Wars that used rear screen protection instead of blue screen!
Odds are George personally owns the originals and was able to retain them as part of the terms of the sale to Disney.
He doesn't want them to be released and this is how he prevents it