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Test Card F

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From August 2016 until July 2019, the latest iteration of the widescreen testcard could be seen briefly each morning at 7:00 am on BBC Two and BBC Two HD. At the centre bottom of the test card is an animated grey bar with graduations corresponding to 1/12 of a second. The animation is accompanied by
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tone is played alongside, which plays test tones at different frequencies from each of the different surround sound speakers, with markers (such as L, R, C, LFE, Ls, Rs) appearing inside some of the grey boxes of the testcard. BBC HD closed in March 2013; therefore Test Card X is no longer regularly
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1992 was the last year that Test Card F was seen daily with music; 1995 was the last year it was seen with music, although it was seen until 1999 with just tone output, and Ceefax was broadcast either with tone or music. However, since the closure of Ceefax, the shutdown of analogue television
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transmissions, and the imposition of budgetary constraints, a new revision of the testcard can be seen daily on BBC Two and BBC Two HD at the end of the "This is BBC Two" transmission. Each morning, as the segment concludes, the testcard is broadcast for approximately one minute.
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on the top and right of the image are the full 100 per cent saturation version, unlike Test Cards F and J which use the 95 per cent type. Extra mirrored arrow-heads on the central axis at the sides mark the positions of the middle 4:3 and 14:9 sections of the image.
489:, were already shown. A green wrap was made to cover his body and this can be seen in Test Card J and Test Card W, along with more of his body shown in the photograph — revealing the fact that he is actually holding a piece of 932:" inscribed on it when a user visited a page that did not exist; however, some time between July 2017 and May 2020, this was replaced with an image of two "clangers" (animated puppets) from the BBC television show 906:
In May 1983, trade test transmissions of the test card ended when Ceefax pages began to be shown during all daytime intervals. This meant that Test Card F was only seen for a few minutes early in the morning.
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parodies the Test Card F where Carole and Bubbles are replaced by worms looking like them. Also, the grid on the blackboard is replaced by a drawing of a grenade, an emblematic weapon of the game franchise.
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In the digital age, Test Card F and its variants are very infrequently broadcast, as downtime hours in schedules have largely been discontinued. Several variations of TCF have been screened, among them
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For the fortieth anniversary of Test Card F, there was some renewed interest in Bubbles in the media; in a 2007 interview, Hersee mentioned that she took Bubbles into school with her to prove to her
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and colour test signals used to assess the quality of the transmitted picture. It was first broadcast on 2 July 1967 (the day after the first colour pictures appeared to the public on television) on
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circuits were not adjusted properly. The closely spaced lines in various parts of the screen allowed focus to be checked from centre to edge; mistuning would also blur the lines. All parts of the
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Along with his Test Card F co-star Carole Hersee, Bubbles has appeared for an estimated total of 70,000 hours on television, equivalent to nearly eight whole years. Carole still owns Bubbles.
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a 'pip' that occurs when the animated bar reaches the centre mark (indicated by a 0), which together can be used to determine whether the digital audio and video signals are synchronised.
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Since the late 1990s, Bubbles has only very rarely appeared on television, as Test Card F has been discontinued, and Test Cards J and W are very seldom shown, due to the advent of
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tests are found on the left and right respectively of the central picture. On the updated version known as Test Card J (including widescreen and HD versions), the X on the
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would not be distinct if contrast and brightness (both internal preset settings and user adjustments) were not set correctly. The black bar on a white background revealed
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pages. It continued to be used for a few minutes each day before the start of programmes, or when the Ceefax generator was not working. It was further phased out from
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is an updated 16:9 (1.78:1) widescreen version of Test Card F. It first appeared in November 1999 alongside Test Card J, with which it bears some similarities.
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A sound of some kind is usually transmitted in the background. It is either music, usually a composition commissioned by the station itself or "royalty-free"
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Fan group site includes history of the BBC and ITA Test Cards, the music, and details about the Trade Test Colour Films shown from the late fifties to 1973.
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segment "The Flawed Couple" featured a parody of Test Card F with Pinky in place of Carole Hersee and the Brain wearing clown makeup in place of Bubbles.
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In recent years, the Test Card is only shown during engineering tests on the BBC and is accompanied by a steady tone of various pitches accompanied by a
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in November 1997 when the station began to air 24 hours a day, followed by BBC2 in January 1999 when its overnight downtime was replaced entirely by
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in the United Kingdom and in countries elsewhere in the world for more than four decades. Like other test cards, it was usually shown while no
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The test card seems to have been given the name "Test Card X" but not by us, it is in fact a modified high definition version of test card W
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is an updated version of Test Card F, and first appeared in November 1999. It includes the following changes relative to its predecessor:
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in 2010–2012, the test card made an appearance during the annual RBS (rebroadcast standby) Test Transmissions and, until 2013, during the
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Variations and parodies of Test Card F are common in British broadcasting, Internet sites, and games. Some prominent examples include:
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However, the shade of green material chosen was too subtle for the engineers' liking and so Bubbles' body colour in Test Card F was
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in Sweden was also later inspired by Test Card F to develop its own colour test card, based on its earlier monochrome test cards,
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A newly added green square at the top of the screen is used to facilitate easier observation of chrominance to luminance delay.
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era. It was first introduced at the beginning of colour television broadcasts in 1973. One of the two successors of NZBC (
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wore a runway look inspired by Test Card F for the season four runway "Keeping it 100!", which was held in honor of the
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predecessor to Test Card W without an identifying letter first appeared in March 1998 as part of digital tests on the
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Parodies have been used in promotional material or videos for many songs (often with band members' faces), including
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between 1953 and 1983, and the first French colour test card featuring a centre image of colourful roses was used on
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In the centre image, a child was depicted so that wrong skin colour would be obvious and not subject to changing
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Virtually all the designs and patterns on the card have some significance. Along the top (see above) are 95%
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The Girl, The Doll, The Music - essay included as the notes for "Test Card Classics, Chandos CD FBCD 2000"
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and signal reflections. The castellations along the top and bottom also revealed possible setup problems.
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Test Card F was also used in approximately 30 countries outside the UK. Notable overseas users included:
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Off-air screen capture of BBC Test Card F, as seen on BBC1 between 17 February 1991 and 4 October 1997.
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Elizabeth Rose Bloodflame uses a parody of Test Card F as her "BRB" (be right back) slide during her
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included a parody of Test Card F where a hand came out and completed the game of noughts and crosses.
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It is less tightly cropped, resulting in more edge detail from the original photograph being visible.
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episode "Tween Scenes," with Ten replacing Carole Hersee and Three replacing Bubbles the Clown.
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made up of two transparencies in perfect registration—one containing the colour information (
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The name of the broadcasting channel usually appeared in the space underneath the letter F—a
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The central image is based on the same source photograph, but with some minor adjustments:
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satellite, and was notably broadcast to the public on 6 November 1998 as part of a joke on
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is much less susceptible to most of these problems. Some of them are also associated with
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The negative black squares in the left hand step pattern should flash on and off at 1
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The blocks of colour on the sides would cause the picture to tear horizontally if the
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in the United Kingdom, Test Card W can be viewed at any time on most Freeview boxes.
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board is at the exact centre of the screen, as some believe was originally intended.
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broadcast. Test Card X did however make an appearance on the lunchtime edition of
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It has been rescanned from the original transparency for improved colour accuracy.
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error called chrominance/luminance delay inequality would make the clown's yellow
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fashions. The juxtaposed garish colours of the clown were such that a common
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based on Test Card F, who teases and torments the lead character, Sam Tyler.
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The image has been re-aligned within Test Card J such that the cross on the
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turn white. Use of centre images in test cards were however not a new idea;
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Radio Television Singapore (RTS)/Singapore Broadcasting Corporation (SBC)
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The BBC website previously featured Bubbles next to a blackboard with "
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Carole Hersee interview marking the 40th anniversary of test card F
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Original transparency of the central image created for Test Card F.
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National Film and Sound Archive of Australia (20 February 2015).
1467:"Non-UK Television Test Cards, Tuning Signals, Clocks and Idents" 1426:"Non-UK Television Test Cards, Tuning Signals, Clocks and Idents" 1209:"Non-UK Television Test Cards, Tuning Signals, Clocks and Idents" 1173:"Non-UK Television Test Cards, Tuning Signals, Clocks and Idents" 1443: 608: 486: 466: 394:, or a steady tone. Composers whose music has been used include 255: 239: 2240: 1940:"BBC Three - This is BBC Three, HD Slide / Test Card BBC Three" 1853:. BBC. 18 June 2016. Archived from the original on 3 April 2016 500:(this can be seen from the edges of his image) to make it more 1801:"The test card puts in an unscheduled appearance on Sportsday" 1097: 956: 847: 772: 730:
variant of Test Card W (sometimes referred to unofficially as
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on 18 January 2023, in place of a slide intended to show the
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was also needed within the scene as the other two television
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board is an indicator for aligning the centre of the screen.
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until 29 April 1983, when it was replaced with broadcasts of
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with a clown doll, Bubbles the Clown, surrounded by various
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from the original on 12 December 2021 – via YouTube.
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Off-air screen capture of the 2016–2019 BBC Two iteration.
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until the termination of that service on 22 October 2012.
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F denoting an original optical version of the test card.
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it subsequently replaced TCF and its variants with the
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variant, which is sometimes erroneously referred to as
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in 2022, Test Card F aired for periods of 20 minutes.
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Interview about the Mighty Boosh's Test Card F parody
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in the 1970s, occasionally used in conjunction with
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Unsourced material may be challenged and 372:) and the other the monochrome background ( 2259: 2245: 2237: 1776:"A Christmas Present from the HD Channel!" 1747:"A Christmas Present from the HD Channel!" 1394: 1392: 1390: 1388: 2747:1967 establishments in the United Kingdom 1361: 1359: 894:Learn how and when to remove this message 827:Learn how and when to remove this message 207:Learn how and when to remove this message 1062:The test card has also been used in the 938:. Similarly, in 2015 the BBC website's " 521:Bahrain Radio and Television Corporation 2048:"Madness - Waiting For The Ghost Train" 1145: 266:of the picture. Standard greyscale and 1864: 1595:"TV-DX SBC 8 Singapore E08 04.10.1991" 1559:"Television Graphics Around the World" 722:BBC HD channel variant ("Test Card X") 153:preview loop, which used Test Card W. 2094:from the original on 12 December 2021 2060:from the original on 12 December 2021 473:, but the BBC engineers decided that 7: 876:adding citations to reliable sources 805:adding citations to reliable sources 593:New Zealand Broadcasting Corporation 493:, which was not previously visible. 189:adding citations to reliable sources 70:The central image on the card shows 2132:Worms W.M.D - Bob's Tank Warehouse! 1512:. hub.tv-ark.org.uk. Archived from 625:Unlettered BBC Widescreen test card 615:which was used well into the 1990s. 465:Bubbles's original body colour was 2232:Carole Hersee Biography on Youtube 987:by removing the content or adding 25: 2227:A history of the BBC's test cards 1153:Mad Radio DXer (9 January 2008). 1989:Griffiths, Nick (1 April 2007). 1537:"Colour TV in Australia, Part 2" 961: 852: 777: 585:, but was later replaced by the 579:four official races of Singapore 529:in Denmark (Replaced along with 165: 2721:1951 USAF resolution test chart 1337:Deacon, Michael (25 May 2007). 1103:The trailers of the video game 863:needs additional citations for 549:in Sweden, briefly in the 1970s 543:in Norway, briefly in the 1970s 176:needs additional citations for 1912:Gadd, Sophie (14 March 2015). 1823:. 27 June 2009. Archived from 1726:. Digital Spy. 13 January 2008 1724:"Hidden testcard on topup box" 1428:. 4 March 2016. Archived from 1211:. 4 March 2016. Archived from 1175:. 4 March 2016. 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Index

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