Trivia

In some scenes the original props from the Hartnell era were used.

Brian Cox did meet Sydney Newman in the mid 60s when working at the BBC.

Mark Eden, who plays the controller of BBC Television, had major guest role in the William Hartnell era, playing the title role in "Marco Polo".

Produced as part of the 50th anniversary celebrations for Doctor Who (1963).

The TARDIS console is green because during the age of Black and White TV, anything white would be too bright and would wash out the picture. A light color green was substituted that would then appear "white" on screen.