List of references to other DWU media in live-action and animated BBC stories: Difference between revisions

== Doctor Who ==

* {{cs|The Dalek Invasion of Earth (TV story)}} used the term "[[Dalekanium]]" to refer to the metal that comprises the casing of a [[Dalek]]. The term, spelled "Dalek''e''nium", had first been used several months earlier in the comic {{cs|The Humanoids (comic story)}} in ''[[The Dalek Book]]''. It would remain a frequently used term, both on television and in other media, through to the 21st century.

* [[David Whitaker]]'s {{cs|The Power of the Daleks (TV story)}} was set on the planet [[Vulcan (Invasion of the Daleks)|Vulcan]], which first appeared two years earlier on a star chart in the comic {{cs|Invasion of the Daleks (comic story)}}. The comic was co-written by Whitaker and fellow television writer and Dalek creator [[Terry Nation]].

* {{cs|The Evil of the Daleks (TV story)}}:

** Although in his early appearances the Dalek Emperor operated a small and mobile casing, he had been shown to transition to a huge, static casing located in the [[Great Hall]] of the [[Dalek City]] for the sake of increased intelligence the year prior in {{cs|The Secret of the Emperor (comic story)}}, a story printed in ''[[The Dalek Outer Space Book]]''.

* {{cs|The War Games (TV story)}} introduces the [[Time Lord]]s, a highly advanced civilisation who were the inventors of the [[TARDIS]]. The notion that [[the Doctor's TARDIS]] had been built by a highly advanced civilisation had earlier been spoken of by the [[First Doctor]] in the ''[[Doctor Who Annual 1966]]'' short story {{cs|Peril in Mechanistria (short story)}}.

* In {{cs|The Sea Devils (TV story)}}, the [[Third Doctor]] says that [[Horatio Nelson]] was a friend of his. The [[Second Doctor]] had met Nelson in the ''[[Doctor Who Annual 1968]]'' short story {{cs|H.M.S. Tardis (short story)}}.

* {{cs|Frontier in Space (TV story)}} featured a future [[Earth]] being ruled by a [[President of Earth]]. The title had first appeared in the DWU in a ''[[TV Century 21]]'' short story, {{cs|Battle in Space (short story)}}.

* The [[Dalek Supreme (Planet of the Daleks)|Dalek Supreme]] in {{cs|Planet of the Daleks (TV story)}} shares its [[black]] and [[gold]] [[colour]] scheme with the Dalek Leader from the comic strip {{cs|*Sub Zero (comic story)}}, which predated the serial by a year.

* In {{cs|Robot (TV story)}}, [[Sarah Jane Smith]] berates [[John Benton|Benton]] after he chases off [[K1]], prompting him to reply: "The [[U.S. Cavalry|US Cavalry]] never got treated like this." Sarah previously called for the US Cavalry to fend off the [[Dalek]]s during the [[Glorious Goodwood (audio story)|audio segments meant for the live performance]] at [[Goodwood Motor Circuit]] on [[18 May (releases)|18 May]] [[1974 (releases)|1974]]. ''Robot'' began airing in [[December (releases)|December]] of that year. (In [[Doctor Who and the Giant Robot (novelisation)|the novelisation]], the line is less specific: "The US Cavalry never ''get'' treated like this.")

* {{cs|Genesis of the Daleks (TV story)}}:

*** Instead of a mere bomb collapsing their tunnelwork, he claims that the Daleks were defeated in part by the power of Earth's [[magnetic core]], something shown in the theatrical film {{cs|Daleks' Invasion Earth 2150 A.D. (theatrical film)}};

*** Instead of the mid-[[22nd century]], the Doctor tells Davros that the invasion happened in [[2000]]. The [[1966 (releases)|1966]] [[Target novelisation]] {{cs|Doctor Who and the Crusaders (novelisation)}} mentioned the Dalek invasion as having happened in "the [[21st century]]".

** Davros creates the [[Dalek mutant]]s by "accelerating the evolution" of the [[Kaled]]s. In a different pre-[[1975 (production)|1975]] account of the Daleks' origin, {{cs|We are the Daleks! (short story)}}, also written by [[Terry Nation]], he had already presented the Dalek mutants as the result of artificially accelerated evolution, that time of transplanted [[human]]s at the hands of the [[Halldon]]s.

* {{cs|Destiny of the Daleks (TV story)}}:

** This story features a [[Truth assessment|Dalek lie detector]], which first appeared in the comic story {{cs|City of the Daleks (comic story)}}.

** The Doctor uses his hat to block a Dalek's eyestalk, just as he did in the comic story {{cs|The Trodos Ambush (comic story)}}.

* In {{cs|Castrovalva (TV story)}}, the Doctor levitates himself, which he learned to do in a [[Levitation (comic story)|TV Comic story]].

* In {{cs|Revelation of the Daleks (TV story)}}, a [[Glass Dalek]] makes an appearance. A [[Glass Dalek (Doctor Who in an Exciting Adventure with the Daleks)|Dalek with glass casing]] first appeared in {{cs|Doctor Who in an Exciting Adventure with the Daleks (novelisation)}}.

* In {{cs|Remembrance of the Daleks (TV story)}}, the [[casing]] used by [[Davros]] as [[Dalek Emperor]] has a spherical upper section, thus having a similar silhouette to the casing used by [[Dalek Prime|the original Dalek Emperor]] in the ''[[TV Century 21]]'' [[The Daleks (comic series)|''Daleks'' comics]]. Indeed, at an early stage in planning of the storyline, ''Remembrance'' was planned to feature the Emperor in earnest.

* {{cs|Dimensions in Time (TV story)}} features a brief cameo by [[Zog (The Ultimate Adventure)|Zog]] from the stage play ''[[The Ultimate Adventure]]''.

* {{cs|Rose (TV story)}}:

** The concept of a [[time war]] originated in the ''[[Doctor Who Magazine]]'' comic {{cs|4-D War (comic story)}}, where [[Time Lord]]s of the [[Dark Times]] fight in the [[Black Sun War]]. The concept would later become a major part of the [[War in Heaven]] of the ''[[BBC Eighth Doctor Adventures]]'', before eventually finding its way onto television in the form of the [[Last Great Time War]], initially mentioned in {{cs|Rose (TV story)}}.<ref>[[Lance Parkin]], an author for the [[BBC Eighth Doctor Adventures]] line, discussed the development of this, its impact on the book line, and the behind-the-scenes thought process [http://www.eruditorumpress.com/blog/time-can-be-rewritten-41-the-gallifrey-chronicles/#comment-35223 here].</ref>

** In the ''[[Virgin New Adventures]]'' novel {{cs|Lungbarrow (novel)}}, the [[Time Vortex]] is red when travelling forward in time and blue when travelling backwards. This idea was used again from [[Series 1 (Doctor Who 2005)|Series 1]] to [[Series 4 (Doctor Who 2005)|4]] of the new series.

* In {{cs|The Parting of the Ways (TV story)}}, the Doctor claims that ancient Dalek legends refer to him as the "Oncoming Storm", a title that was first applied to him in the novels {{cs|Love and War (novel)}} and {{cs|Vampire Science (novel)}}. It would remain frequently used in subsequent years of televised and non-televised media alike.

[[File:Millingdale Ice Cream Advert L&M.jpg|thumb|One such advert of [[Millingdale]] [[ice cream]] was seen on [[Victor Kennedy]]'s copy of ''[[The Daily Telegraph]]''. ([[TV]]: ''[[Love & Monsters (TV story)|Love & Monsters]]'').]]

* {{cs|Doomsday (TV story)}} includes the first televised reference to [[rel]]s, a Dalek measurement of time. A Dalek unit called a "rel" was created in [[1964 (releases)|1964]]'s ''[[The Dalek Dictionary (feature)|The Dalek Dictionary]]'', where it measured "[[hydro-electricity]]"; it was first depicted as a unit of time in the film {{cs|Daleks' Invasion Earth 2150 A.D. (theatrical film)}}, and had since appeared in comics and audios.

* {{cs|Smith and Jones (TV story)}}:

** The Doctor mentions that he used to have a brother. The character of [[Irving Braxiatel]], first introduced in the [[Virgin New Adventures]], had previously been established as the Doctor's brother.

* In {{cs|The Infinite Quest (TV story)}}, the Doctor mentions the [[Sabre-Toothed Gorilla]]s as a potential threat outside the TARDIS; the Sabre-Toothed Gorillas had been introduced in the ''[[TV Comic]]'' story, aptly named {{cs|The Sabre-Toothed Gorillas (comic story)}}, as well as being mentioned in the short story {{cs|A letter from the Master (short story)}}.

* The [[Butler Institute]], originally from the ''[[Virgin New Adventures]]'' novel {{cs|Cat's Cradle: Warhead (novel)}}, was briefly seen in {{cs|The Poison Sky (TV story)}}.

* In {{cs|The Unicorn and the Wasp (TV story)}}, the Doctor displays the ability to tell what time period he is in by smelling the air around him. He previously did this in the audio {{cs|The Eye of the Scorpion (audio story)}} and webcast {{cs|Scream of the Shalka (webcast)}}.

** Although the final design of the [[Supreme Dalek (The Stolen Earth)|Supreme Dalek]] only retains the three [[Luminosity discharger|dome lights]] (in place of the typical two) as evidence of it, concept art proves that its design was influenced by the ''[[TV Century 21]]'' [[Dalek Prime|Golden Emperor]]'s, much like that of [[Davros]]'s [[Dalek Emperor|imperial]] [[casing]] in {{cs|Remembrance of the Daleks (TV story)}}.

** Davros has a [[Davros' mechanical hand|mechanical hand]] that replaced the one shot off in {{cs|Revelation of the Daleks (TV story)}}. He was first depicted this way in the audio play {{cs|The Juggernauts (audio story)}}.

** The American version of UNIT had also been first mentioned in the novel {{cs|Bullet Time (novel)}}, and UNIT's previous amount of separate divisions were seen in the novel {{cs|The Dying Days (novel)}}.

* In {{cs|Journey's End (TV story)}}, the TARDIS is piloted by six people. This was the intended number, as revealed in the novel {{cs|Cat's Cradle: Time's Crucible (novel)}}.

** In a flashback to the creation of the [[Eye of Harmony]] in the novel {{cs|Interference - Book One (novel)}}, the words Rassilon pronounced just before switching on the machinery, [[Anchoring of the thread|creating]] conventional [[time]], were "For our children. For the sake of Gallifrey, and for time itself". At the end of Part 1, when setting in motion his plan to bring about the end of Time, he intones "For Gallifrey. For victory. For the end of time itself".

* {{cs|Victory of the Daleks (TV story)}} and subsequent stories establish that the Doctor and [[Winston Churchill]] are old friends. The novel {{cs|Players (novel)}} in the [[BBC Past Doctor Adventures]] was actually the first story to depict the relationship in this way, and was reinforced by Churchill's cameo in {{cs|The Shadow in the Glass (novel)}}.

* In {{cs|Flesh and Stone (TV story)}}, the Doctor describes himself as a [[complicated space-time event]]. In [[Steven Moffat]]'s first-ever ''[[Doctor Who]]'' story, the [[Seventh Doctor]] short story {{cs|Continuity Errors (short story)}}, [[Professor]] [[Arthur Candy|Candy]]'s research defined the Doctor as "a [[CSTE]] – a [[Complex Space-Time Event]]. In fact, I believe he is the most complex space-time event there has ever been anywhere". Elements from ''Continuity Errors'' would be echoed more indirectly in other TV stories by Moffat, both earlier (as with the giant library setting of {{cs|Silence in the Library (TV story)}}) and later (as with {{cs|A Christmas Carol (TV story)}}, which would revisit the premise of the Doctor using time travel to intervene in a character's life to slightly alter their outlook on a situation in the present).

* In {{cs|The Big Bang (TV story)}}, the [[Eleventh Doctor]] tells an [[Auton]] duplicate of [[Rory Williams]] that he, as an Auton, is vulnerable to [[heat]] and [[radio]] signals. This fact was first established in {{cs|Operation Mannequin (short story)}}, wherein [[Lieutenant|Lt]] [[David Judd]] theorises that the [[Nestene Consciousness]] was weak to radio signals.

* {{cs|The Doctor's Wife (TV story)}} reveals that the TARDIS has the ability to archive old console rooms. This was a plot point in the comic {{cs|Tesseract (comic story)}}. There is a contradiction between the two stories, as the Doctor is aware of this ability in the comic but unaware in the episode.

* Professor [[Arthur Candy]], who first appeared in [[Steven Moffat]]'s ''[[Decalog 3: Consequences]]'' short story {{cs|Continuity Errors (short story)}}, appears again in Moffat's television story {{cs|Let's Kill Hitler (TV story)}}. Furthermore, he meets River at [[Luna University]], which was first mentioned in that short story.

* [[The Brig]]'s [[daughter]] [[Kate Stewart]], who first appeared in the [[1995 (releases)|1995]] home video {{cs|Downtime (home video)}}, appears as a major recurring character in the series starting with {{cs|The Power of Three (TV story)}}.

* {{cs|The Great Detective (TV story)}} reveals that [[Vastra|Madame Vastra]], [[Jenny Flint]] and [[Strax]] live on [[Paternoster Row]], hence why they are called the [[Paternoster Gang]]. This fact was first established in ''[[The Brilliant Book 2012]]'' (published one year earlier).

* In {{cs|Nightmare in Silver (TV story)}}, the Doctor claims that the Time Lords invented chess. The idea that chess is not a human invention first appeared in the novel {{cs|Dreams of Empire (novel)}} though in that case the Doctor admitted that he did not know the game's precise origin.

* Before [[regenerating]] in {{cs|The Night of the Doctor (TV story)}}, the [[Eighth Doctor]] recalls some of his audio-original companions, including [[Charlotte Pollard|Charley]], [[C'rizz]], [[Lucie Miller]], [[Tamsin Drew]], and [[Molly O'Sullivan]].

* {{cs|The Day of the Doctor (TV story)}}:

** The story also prominently features the [[War Council]] of [[Gallifrey]], first seen in the [[BBC Eighth Doctor Adventures|BBC ''Eighth Doctor Adventures'']] as part of the [[War in Heaven]]. It is also referred to in dialogue as "[[Gallifrey High Command]]", a phrase first used in [[David Martin]]'s ''[[The Adventures of K9 (series)|The Adventures of K9]]'' books from the 1980s.

** The Doctor's promise is revealed to be "[[Never cruel or cowardly|Never cruel or cowardly. Never give up, never give in.]]", a description of the Doctor's character from the 1976 edition of ''[[The Making of Doctor Who]]''.

* In {{cs|Into the Dalek (TV story)}}, [[Clara Oswald]] is a teacher of [[Class 1C (Coal Hill)|Class 1C]], which was identified as [[Barbara Wright]]'s class number in the novelisation {{cs|The Edge of Destruction (novelisation)}}.

* In {{cs|Robot of Sherwood (TV story)}}, the Doctor says he learned sword fighting from [[Richard I of England|Richard the Lionheart]], just as he had in the audio story {{cs|Leviathan (audio story)}}. Although Richard had appeared in {{cs|The Crusade (TV story)}}, he was never shown practicing sword fighting with the Doctor in that story. The Doctor also mentions sword fighting with [[Errol Flynn]]. He had previously mentioned sparring with Flynn in the audio {{cs|Hexagora (audio story)}}.

* In {{cs|Death in Heaven (TV story)}}, Kate Stewart mentions her children. Her son [[Gordon Lethbridge-Stewart]] had appeared in {{cs|Downtime (home video)}}.

* {{cs|The Magician's Apprentice (TV story)}} revealed that [[Missy]] had survived the events of {{cs|Death in Heaven (TV story)}}, a fact which had been foreshadowed by the ''[[Doctor Who Magazine]]'' short story {{cs|The Secret Diary of the Master (short story)}} the previous year.

* {{cs|The Witch's Familiar (TV story)}}:

** While still pretending to be a [[Surgeon (The Husbands of River Song)|simple surgeon]], the [[Twelfth Doctor]] mentions that the real Doctor might be batting "giant robot fish from the [[Ninth Dimension]]". The [[Second Doctor]] sent the [[Arcturian]]s to the Ninth Dimension in the [[1967 (releases)|1967]] short story {{cs|Only a Matter of Time (short story)}}, from [[Doctor Who Annual 1968]].

* The colony planet in {{cs|Smile (TV story)}}, though not named in dialogue, was identified in advertising and reference material around the time of the episode's release as [[Gliese 581d]], a link eventually confirmed in a narrative work in [[Doctor Who The Official Annual 2018|the 2018 ''Doctor Who Annual'']]. This planet had first been mentioned as a future human colony ten years earlier in {{cs|All Snug in Their Beds (short story)}}, a [[Fourth Doctor]] short story printed in ''[[Short Trips: The Ghosts of Christmas]]''.

* In {{cs|Thin Ice (TV story)}}, the [[Twelfth Doctor]] says he has been to the [[Frost fair]] a few times before. The [[First Doctor]] visited the fair in the audio story {{cs|Frostfire (audio story)}} and the [[Tenth Doctor]] did so in the short story {{cs|The Frozen (short story)}}.

** The First Doctor tells [[Bill Potts]] that his belief that good always prevails is why he left Gallifrey. The Eighth Doctor told Charley the same thing in the audio story {{cs|The Stones of Venice (audio story)}}.

* In {{cs|The Ghost Monument (TV story)}}, the Thirteenth Doctor says she knew [[Pythagoras]], whom the Fourth Doctor mentions knowing in the audio {{cs|The Labyrinth of Buda Castle (audio story)}} and the comic {{cs|Gaze of the Medusa (comic story)}}.

* In {{cs|Rosa (TV story)}}, the Doctor mentions knowing [[Elvis Presley]]. The Doctor's friendship with Elvis was previously referenced in the novel {{cs|Ghosts of India (novel)}} and video game {{cs|Blood of the Cybermen (video game)}}.

** Dalek laughter is shown to be off-putting to humans, just as it was in the comic {{cs|City of the Daleks (comic story)}}.

* {{cs|Spyfall (TV story)}}:

** The Doctor makes repairs to the TARDIS that drain the rainforest floor. The TARDIS had been shown to contain a rainforest in the audio story {{cs|No Place Like Home (audio story)}}.

* In {{cs|Fugitive of the Judoon (TV story)}}, [[Ruth Clayton]] calls the leader of the [[Judoon]] "Daddy Rhinoform". The [[Sixth Doctor]] referred to the Judoon as "rhinoform bipeds" in the audio drama {{cs|Judoon in Chains (audio story)}}.

* {{cs|Revolution of the Daleks (TV story)}} marked the televised introduction of a [[Dalek death squad]], which first appeared in the {{cs|Dalek Survival Guide (novel)}}.

* {{cs|Once, Upon Time (TV story)}}:

** This story features the [[Siege of Atropos]] in which the Time Lords capture the [[Ravager (The Halloween Apocalypse)|Ravagers]] and allow the [[Mouri]] to control Time. This event is part of the [[anchoring of the thread]] that was first established in the novels {{cs|Christmas on a Rational Planet (novel)}} and {{cs|The Book of the War (novel)}}.

** Although not named as such, the story features the first televised [[retro-regeneration]]. The Doctor and other Time Lords had been subject to this concept numerous times in other media. Examples include the novels {{cs|State of Change (novel)}} and {{cs|Sky Pirates! (novel)}}, the comic {{cs|The Fountains of Forever (comic story)}} and the audio {{cs|The Lost Magic (audio story)}}.

* {{cs|Destination: Skaro (TV story)}}:

** [[Castavillian]] suggests several anagrams for [[Kaled]], one of which is [[Klade]]. The Klade are humanoid descendants of the Daleks, first mentioned in the novel {{cs|The Infinity Doctors (novel)}} and later featured in the novel {{cs|Father Time (novel)}} and the comic {{cs|Miranda (comic story)}}.

** [[The Toymaker]] boasts "Do you think a grand total of two can cause me to shiver when I've played against the Guardians of Time and Space [and won]?", implicitly taking it for granted that there are ''more'' than two [[Guardian of Time|Guardians]]. The idea of a wider pantheon of Guardians than the original TV portrayal's Manichean duo was first devised by [[Craig Hinton]], and it was hinted at or stated in a number of sources including {{cs|The Quantum Archangel (novel)}} and {{cs|Divided Loyalties (novel)}}.

** The [[Fifteenth Doctor]] refers to the death of [[Sarah Jane Smith]], which was first established in the ''[[Doctor Who: Lockdown!]]'' webcast {{cs|Farewell, Sarah Jane (webcast)}}.

== ''Torchwood'' ==

== Mini-sodes ==

* In {{cs|Ian Chesterton: An Introduction (home video)}}, the home video reconstruction of {{cs|The Crusade (TV story)}}, [[Ian Chesterton]] recalls two untelevised adventures. The first involves the talking stones of [[Tyron]], mentioned in the parent story's [[Target novelisation|novelisation]], {{cs|Doctor Who and the Crusaders (novelisation)}}, and the second is his witnessing of the [[Salem witch trials]], depicted in the [[BBC Past Doctor Adventures]] novel {{cs|The Witch Hunters (novel)}}.

* In {{cs|Liberty Hall (home video)}}, [[Alistair Gordon Lethbridge-Stewart]] mentions being with [[Eighth Doctor|the Doctor]] in [[Malebolgia]] in [[2003]], which are references to the audio story {{cs|Minuet in Hell (audio story)}}. He also mentions [[Gordon Lethbridge-Stewart|Gordon]] and [[Kate Lethbridge-Stewart]], who are his family members in the independently produced {{cs|Downtime (home video)}}.