Telerecording

A telerecording (American: kinescope) is a film recording of something originally shot on another medium, usually videotape.

With respect to Doctor Who, they were made during the 1960s and early 1970s so that episodes could be sold to overseas broadcasters. At that time, many overseas broadcasters didn't possess the technology to broadcast the videotape on which the British Broadcasting Corporation recorded. 16mm telerecordings

Because all of the videotape of William Hartnell, Patrick Troughton, and early Jon Pertwee episodes was wiped, the telerecordings became the only surviving video of these episodes. Almost every episode of these three Doctors was telerecorded. Thus an episode only truly went missing once the last remaining telerecorded copy was destroyed by BBC Enterprises, the international sales division of the British Broadcasting Corporation.

Most telerecordings were done on

16mm film was an alternate recording medium used in the 1960s, primarily for stories filmed in-studio. It was also the medium onto which stories recorded on videotape were transferred for overseas sales, a process overseen at the time by Film Recording Clerk Pamela Nash and known as telerecording. Most Doctor Who stories produced in the 1960s were telerecorded into 16mm format. One exception is "The Feast of Steven," Episode 7 of "The Daleks' Master Plan," which was never telerecorded and whose videotape record was most likely wiped, making it the first "lost" story (see Lost Doctor Who television stories for more information). Episode 5 of "The Dalek Invasion of Earth," Episode 6 of "The Wheel in Space," Episode 3 of "The Dominators," Episode 5 of "The Mind Robber," Episode 1 of "The Krotons," Episode 5 of "The Seeds of Death," and Episode 2 of "The Space Pirates" are other exceptions, as these were telerecorded in 35mm format. Following is a list of stories produced and telerecorded in the 1960s, with the individual episodes of which 16mm telerecorded copies currently exist in the BBC Film Library:

Season 1

 * The Pilot Episode 	1
 * An Unearthly Child (4 eps) 	1,2,3,4
 * The Daleks (7 eps) 	1,2,3,4,5,6,7
 * The Edge of Destruction (2 eps) 	1,2
 * Marco Polo (7 eps)
 * The Keys of Marinus (6 eps) 	1,2,3,4,5,6
 * The Aztecs (4 eps) 	1,2,3,4
 * The Sensorites (6 eps) 	1,2,3,4,5,6
 * The Reign of Terror (6 eps) 	1,2,3,6

Season 2

 * Planet of Giants (3 eps) 	1,2,3
 * The Dalek Invasion of Earth (6 eps) 	1,2,3,4,5,6
 * The Rescue (2 eps) 	1,2
 * The Romans (4 eps) 	1,2,3,4
 * The Web Planet (6 eps) 	1,2,3,4,5,6
 * The Crusade (4 eps) 	1,3
 * The Space Museum (4 eps) 	1,2,3,4
 * The Chase (6 eps) 	1,2,3,4,5,6
 * The Time Meddler (4 eps) 	1,2,3,4

Season 3

 * Galaxy 4 (4 eps)
 * Mission to the Unknown (1 ep)
 * The Myth Makers (4 eps)
 * The Daleks' Master Plan (12 eps) 	2, 5,10
 * The Massacre of St Bartholomew's Eve (4 eps)
 * The Ark (4 eps) 	1,2,3,4
 * The Celestial Toymaker (4 eps) 	4
 * The Gunfighters (4 eps) 	1,2,3,4
 * The Savages (4 eps)
 * The War Machines (4 eps) 	1,2,3,4

Season 4

 * The Smugglers (4 eps)
 * The Tenth Planet (4 eps) 	1,2,3
 * The Power of the Daleks (6 eps)
 * The Highlanders (4 eps)
 * The Underwater Menace (4 eps) 	3
 * The Moonbase (4 eps) 	2,4
 * The Macra Terror (4 eps)
 * The Faceless Ones (6 eps) 	1,3
 * The Evil of the Daleks (7 eps) 	2

Season 5

 * The Tomb of the Cybermen (4 eps) 	1,2,3,4
 * The Abominable Snowmen (6 eps) 	2
 * The Ice Warriors (6 eps) 	1,4,5,6
 * The Enemy of the World (6 eps) 	3
 * The Web of Fear (6 eps) 	1
 * Fury from the Deep (6 eps)
 * The Wheel in Space (6 eps) 	3,6

Season 6

 * The Dominators (5 eps) 	1,2,3,4,5
 * The Mind Robber (5 eps) 	1,2,3,4,5
 * The Invasion (8 eps) 	2,3,5,6,7,8
 * The Krotons (4 eps) 	1,2,3,4
 * The Seeds of Death (6 eps) 	1,2,3,4,5,6
 * The Space Pirates (6 eps) 	2
 * The War Games (10 eps) 	1,2,3,4,5,6,7,8,9,10