In December, 2011, the news was released that two previously lost episodes of Doctor Who had been found: 'Airlock' ('Galaxy 4' Episode 3) with William Hartnell and 'The Underwater Menace' Episode 2 with Patrick Troughton.
Film collector Terry Burnett purchased these films in the early 80s but had no idea that they were missing episodes. He's our hero now for allowing the world to see them again!
Here are links to some news stories about the finds ...