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1、TheHistoryofFilm,Television&Video1872-1877Aseriesofphotographscanbeviewedbystroboscopicdisc.1884GeorgeEastmaninventsflexiblephotographicfilm.1887ThomasEdisonpatentsmotionpicturecamera.1888Edisonattemptstorecordpicturephotosontoawaxcylinder.1891-1895Dicksonshootsnumerous15secondmotionpicturesusingE
2、dison'skineograph,hismotionpicturecamera.1895FirstpublicdemonstrationofmotionpicturesdisplayedinFrance.1897DevelopmentoftheCathodeRayTubebyFerdinandBraun.1907Useofcathoderaytubetoproducetelevisionimages.1923Patentfortheiconoscope,theforerunnerofthepicturetube.1927TalkingfilmsbeginwithAlJolsonin"Th
3、eJazzSinger".Early1930sRCAconductsblackandwhitebroadcastingexperiments.1936FirsttelevisionbroadcastmadeavailableinLondon.1938InitialproposalforcolorTVbroadcastmadebyGeorgeValensi.1945?Therewerefewerthan7,000workingTVsetsinthecountryandonlyninestationsontheair;threeinNewYork,twoeachinChicagoandLosA
4、ngeles,andoneeachinPhiladelphiaandSchenectady,N.Y.RCAthatsamemonthholdsitsfirstpublicdemonstrationofanewTVcameraofferingasharperimagethanthosetheninuse.NeartheendofOctober,Gimbel'sDepartmentStoreinPhiladelphiaholdsthefirstlarge-scaleTVdemonstration.Morethan25,000peoplecomeoverthreeweeksforachancet
5、owatchNBCprogramsfromNewYorkandlocalshowssentoutbyPhilco'sPhiladelphiastation.1946TheBlueNetwork,partofNBC,officiallybecomestheABCnetwork.A1941FCCrulingrequiredRCAtodivestitselfofoneofitstwonetworks;NBCBluewassoldin1943toEdwardNoblefor$8million,andbecomesABCin1945.?NBCandGillettestagewhat'sbilleda
6、sthefirst"televisionsportsextravaganza"--theJoeLouis-BillyConnheavyweightfightatYankeeStadium--inJune.Thefightisaviewingsuccesswithanestimatedaudienceof150,000watching5,000sets.ForeveryTVsettunedintothefight,thereare,onaverage,30peoplewatching,manyseeinganeventonTVforthefirsttime.InOctober,theTele
7、visionBroadcastersAssociationdeclares"televisionisreadytoproceedonanexpandedbasis,"andthatthenewindustryis"wellonthewaytobecomingoneofthemostimportantinthenation."1947"HowdyDoody,"achildren'sseries,premieresliveo
