"This episode was first broadcast on 2 October 1964." "It was seen by 11.9 million people, a drop of half a million on the previous week, but still enough to keep Doctor Who's toehold in the top ten." "The Doctor on the operating table was one of the serial's more controversial images in 1964, though perhaps the journalists who reported the row may not have been watching very carefully." "At least, I didn't see any "whip-wielding Daleks" menacing the Doctor." "Terry Nation originally conceived the saucer interior in terms of its impressive size:" ""A complex of girders and ramps, sloping and spiral."" ""Suspended between upright shafts are instrument panels and television screens."" "The set was built on a rostrum about three feet off the studio floor, and was adjacent with the ramp at the saucer entrance." "When you see the ramp in the next shot, notice the repair job in the middle." "An unsupported structure, it had been broken by marching Robomen in camera rehearsals." "Richard McNeff, who plays the rebel Baker, was often cast as burly policemen in the 1950s and '60s." "It was originally intended to show Baker carrying the unconscious Doctor in his arms, but during camera rehearsals, McNeff came down too fast, pitched forward, and dropped William Hartnell." "Hartnell landed on a camera's steering circle and hurt his back." "A BBC nurse was summoned from Television Centre." "Hartnell, who was 56, was temporarily paralysed, but he recovered enough to complete the evening's recording, with the carrying sequence amended." "He went for an X-ray the following Monday." "No bones had been broken, but he had to spend several days in bed and was unavailable for the following week's episode." "After this scene, there was a break in recording to clear the smoke." "There were five ventilation ducts in the studio, two on one wall and three on the wall opposite." "The studio air-conditioning was poor, so recording was often a sweaty business for all concerned." "See, in this scene the smoke has gone!" "The Dalek Supreme is now painted fully black." "The "striped" casing you saw in the reprise earlier in the episode was the previous week's paint job, played in from a film recording." "In the first draft, Dortmun is consumed with guilty despair at the failure of the attack." "He knew the bomb wasn't ready, but, he says," ""I wanted to be the one man who found the way to beat the Daleks."" "Dortmun is played by Alan Judd, whose later television appearances included" "Lord Peter Wimsey (1972), The Pallisers (1974), and the judge in Jury (1983)." "Jacqueline Hill (1929-93), who plays Barbara, got her first break as an actress thanks to the legendary American actor-director Sam Wanamaker, who cast her in The Shrike (Garrick Theatre, 1953)." "Her previous television roles included the female lead in the BBC production of Requiem for a Heavyweight (1957), and an outstanding performance as a serial killer's wife in Maigret (1962)." "In the camera script, London will only be destroyed if necessary." "A complete search has been ordered first." "In the first draft, the Daleks send their "War Fleet 9" to destroy the city." "Meanwhile, the saucer is to go to "Earth Base One"." "Perhaps rather drastically, it flies right up into space and back down again." "Terry Nation described the sound of the saucer in flight as:" ""Whatever Special Effects think a flying saucer sounds like."" "A more complex fight was originally worked out." "Craddock gets Ian in a full nelson, but Ian throws him over his shoulder;" "Craddock jack-knifes and puts a scissor lock on Ian's head;" "Larry pulls the Roboman helmet off, causing Craddock to have a fit;" "and they then take him to the operating table and anaesthetize him." "To indicate that the saucer is in flight, there's a wind machine blowing on the other side of the disposal chute." "You can just see the breeze catch Larry's jacket." "Carole Ann Ford had wanted to get out of Doctor Who from quite early on." "She was disappointed in the role of Susan, which had not proved quite as challenging as she had at first been led to believe." "She had expected to be playing a much more sophisticated character, scientifically minded, in telepathic contact with her grandfather, and adept with martial arts like Honor Blackman's Cathy Gale in The Avengers (1962-4)." "She felt that the character was not developing in any coherent way as the series went on, and was further frustrated by having to turn down some choice roles during the period of her contract to Doctor Who." "Experience should have made Susan grow out of her fear of alien monsters, she suggested, and she also wanted to explore Susan's sexuality by giving her a crush on Ian." "The production team rejected her suggestions, but had similar concerns." "Susan was designed as a figure with whom the young audience would identify, but Carole Ann, who had been 21 when she was first cast in the role, was physically too mature to play a convincing teenager." "So it was decided to release Carole Ann at the end of her contract, lose Susan, and devise a new regular character who would be a much younger girl." "This is why Susan grows up and falls in love in 'The Dalek Invasion of Earth'." "In the summer of 1964, plans were laid for the character developments leading up to her exit, and a BBC document dated 30 July detailed the "proposed elimination of Susan":" ""The enormity of the world catastrophe has a marked effect on Susan's character." ""She grows more adult as she realises that the individual is the society." ""She begins to find her place in time and space."" "Initially, it was hoped to introduce the new regular character in this serial, but this had to be abandoned, partly because the casting fell through." "The intention had been to engage 14-year-old actress Pamela Franklin, whose film roles had included a haunted Victorian child in The Innocents (1961), and who later starred in the BBC's juvenile thriller serial Quick Before They Catch Us (1966)." "Franklin's name was still in the frame on 17 August, less than a week before filming was due to begin on this serial." "The role was then quickly rewritten and recast." "Can you guess which of the characters it was?" "The other problem was reluctance on the part of some members of the BBC's management to make a firm decision whether there would be any more episodes of Doctor Who after the first year." "This was as late as mid-August 1964, when this serial was in pre-production." "No more Doctor Who would have meant no need for a new regular, end of story!" "After this sequence, the camera script includes a short scene cut from the finished episode." "Susan realises that the Daleks have decided to kill everyone, and David reasons that they must leave London." "But first they can call in at Dortmun's second command post at the Civic Transport Museum in Knightsbridge." "Then the Doctor describes his "interesting" experience at the hands of the Daleks:" ""They paralysed my body and will-power but not my conscious mind."" "This serial called for Doctor Who's first large-scale use of location sequences." "Terry Nation originally proposed using footage from the film Seven Days to Noon (1950) to show the deserted London streets." "In the film, London is evacuated after an atomic bomb threat." "But it was soon recognized that a great deal of material would have to be specially shot:" ""We must show the total invasion of London," noted Nation." "Here the Daleks have occupied Westminster Bridge, but only with difficulty, because it was an effort for the operators to pedal up the rise of the bridge." "Unfamiliar with the new pedal-driven casings, the operators were also anxious about safe speeds, so director Richard Martin had trouble getting them to go fast enough." "There was trouble, too, from the Metropolitan Police, after traffic on the bridge had to stop for the Daleks." "Terry Nation proposed showing Daleks in all the familiar locations that were eventually used and several others." "One was, inevitably, "Daleks gliding around the forecourt at Television Centre"." "Others included "Daleks emerging from the underpass at Hyde Park", and weaving "amongst the porchways of the Albert Hall";" ""Daleks near the round pond, and/or near the statue of Peter Pan in Kensington Gardens", and "gliding up the Mall towards Buck House" (Buckingham Palace)." "To get a suitably deserted effect, it was decided to start filming early in the morning, so the cast and crew began work in Trafalgar Square at 6am on Sunday 23 August." "Even then, the square wasn't totally deserted." "Look in the background and you'll see that the buses are still running, and one of the crew's first tasks was to move on the vagrants who had slept rough in the square overnight." "The Dalek script, seen here, was put on with white plimsoll blanco, which designer Spencer Chapman reckoned would be easily removed." "It had to be removed sooner than expected when a policeman decided he was defacing public property!" "It was an exhausting morning for the actresses, constantly pushing the wheelchair, while the Dalek operators, sealed inside the casings, had their own unique problem, which they solved by relieving themselves into a Trafalgar Square grating." "After the Daleks had frightened a group of drunken partygoers returning home via the square, the unit moved on, in reverse story order, to Whitehall, Westminster Bridge and the Embankment." "By the time these shots were filmed at the Albert Memorial, it was 10am." "London had begun to wake up." "Traffic and crowd control were becoming a problem, and the time was fast approaching when the crew had agreed with the police to vacate central London." "So after four hours' work, the crew moved on to quieter locations in suburbia." "In the first draft, this is an ordinary bus garage, housing a bus with flat tyres." "In the camera script, he says that the problem is "to find a way to crack the outer casing the Daleks wear"." "In the camera script, he says, "It certainly isn't oil or any metal we know." ""The Daleks have the pick of a hundred planets for those things."" "It was, of course, Jenny who replaced the younger character planned as the new series regular." "She was a "beautiful Anglo-Indian girl" who turns out to be Professor Dortmun's daughter." "She appears in the first draft, and her name is Saida." "In the first draft, Dortmun advises Barbara and Saida to get out of London through the sewers." "Saida protests that this is impossible." "They won't be able to manage his wheelchair in the tunnels." "Dortmun, however, is adamant that he has nothing more to contribute to the defeat of the invaders and can only be a burden." "Story editor David Whitaker used to joke that the production team had been blackmailed into bringing back the Daleks." "In fact, it had been anticipated from early on that the Daleks might return." "After their first appearance, the BBC received many letters from children who wanted their own Daleks, and two of the props were donated to Dr Barnardo's children's homes." "However, the other two, and other Dalek paraphernalia, were retained for a possible future appearance in Doctor Who." "The ultimate source of the "blackmail" was the New Zealand-born entrepreneur Walter Tuckwell, who saw the Daleks' commercial potential and wanted a concession to license them to toy manufacturers." "He contacted BBC Enterprises, who in turn wrote to the Doctor Who production office." "This was in February 1964, and coincided with the earliest plans for this serial." "The Daleks invaded Earth's toyshops in time for Christmas 1964." "Rich kids could exterminate grandad in their Dalek dressing-up suits, which sold for nearly £9." "The books, badges and confectionery were more modestly priced, and when this serial was on air, plans were afoot for many more Dalek products, ranging from models to soap." "There was even the inevitable Christmas novelty record," "I'm Gonna Spend My Christmas with a Dalek by the Go-Gos." "It didn't make the Top 40!" "William Hartnell and Carole Ann Ford thought of the relationship between the Doctor and Susan as a tactile one." "As grandfather and granddaughter, they are close blood relatives, and this means that they need have few inhibitions about touching one another." "Fortunately, this was also true of both actors!" "A little scripted dialogue was cut from the following exchange between the Doctor and David." "The Doctor realises that it will be virtually impossible to get south of the river (and so back to his ship), and David estimates that there are fewer Daleks on this side of London." "Studio recording for this episode took place on 2 October 1964." "The next shot was recorded out of sequence, at the end of the evening's recording." "This shot, too, was recorded out of sequence and inserted during editing." "This was the sequence where, in camera rehearsal, the Robomen broke the ramp because they failed to break step." "The slaves are the same ones who were rescued in the attack on the saucer earlier in the episode." "In the first draft, the episode ends as the Daleks prepare to destroy London with "inferno bombs"." "The city will be girdled with a ring of fire, and the wind will carry the flames into central London." "One of the bombs is carried by a single Dalek and fixed to a wall near to Doctor Who's hiding-place." "It proves to be very heavy:" ""The Daleks must be as strong as six men to carry these around," says David." "The cliff-hanger comes when Doctor Who realises it's a bomb, tells them to run, then finds that his paralysis still hasn't quite worn off." "He can't move his legs, and the needle ticks inexorably down to the ignition point." "The non-speaking freedom fighters included:" "Roy Curtis, Joe Hardesty, Roma Milne" "Uncredited production contributors to the serial included:" "Roy Fry (Editor)" "Eddy Walstead (Telerecording Editor)" "John Lopes, Ann Smith, Clive Doig (Vision Mixers)" "Brian Hodgson (Special Sound)"