Commentary[]
Commentary by Tom Baker (The Doctor), Elisabeth Sladen (Sarah-Jane Smith), Terrance Dicks (Writer) and Barry Letts (Producer).
Note: The DVD sleeve and insert both incorrectly omit Barry Letts' participation in the commentary.
Are Friends Electric?[]
This new documentary examines Tom Baker's introduction as the Doctor and the making of his first story. Featuring actors Tom Baker, Elisabeth Sladen, Alex Linstead, Patricia Maynard, Michael Kilgarriff and Edward Burnham, producers Barry Letts and Philip Hinchcliffe, script editor Terrance Dicks, director Christopher Barry and production unit manager George Gallacio. Interviewers: Victoria Berry, Conrad Turner; Photographic Research: Derek Handley, Ralph Montagu; Additional Camera: Une Herzer, Steve Broster; Additional Sound: Angus Anderson; Colourist: Jonathan Wood; Camera/Editor: John Kelly; Producer: Andrew Beech. (38'58" | 16:9 | 2007)
The Tunnel Effect[]
Graphic designer Bernard Lodge explains how he created the complex opening titles for Tom Baker's stories. Narrator: George Kelly. Music: Jan Cyrka, Toby Brincheno, Christian Henson, Joe Henson, Saba Winter; Lighting Cameraman: David Simmons; Production Runner: Louis Yung-Hoi; On-Line Editor: Leanne Sheppard; Colourist: Jonathan Wood; Executive Producer: Dan Hall; Producer/Director: Brendan Sheppard. (13'47" | 16:9 | 2007
Blue Peter[]
An extract from a programme first broadcast on 23/05/1974 when, due to industrial action, the Blue Peter team were obliged to present the programme from the set of Robot. Featuring Peter Purves, John Noakes, Lesley Judd. (2'15" | 4:3 | 1974)
Radio Times Listings[]
Listings for this story from the BBC magazine.
BBC Enterprises Literature[]
Selected literature produced by BBC Enterprises about Season 18.
Production Subtitles[]
Text commentary by Richard Molesworth providing cast details, script development and other information related to the production of this story.
Photo Gallery[]
A selection of rare and previously unpublished photos. Editor: Derek Handley. (4'15" | 4:3 | 2007)
Easter Egg[]
Continuity Announcements (Original BBC1 Broadcast). From the main menu screen, navigate to 'Special Features' and press the left arrow button to highlight the Doctor Who logo in the top left corner and select it. (0'41" | 4:3 | 1974)