https://www.youtube.com/watch?v=J3P3VzFoGXo
Susan has fallen in love with resistance fighter David Campbell, and the first Doctor decides to leave her on Earth to find a new life with him, bidding her a fond but firm farewell. Memorable scenes from The Dalek Invasion of Earth, first shown in 1964!
https://www.youtube.com/watch?v=tLSEAxCelw8
The titles remake for series 8.