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1、TheHistoryofFilm,Television&Video1872-1877Aseriesofphotographscanbeviewedbystroboscopicdisc.1884GeorgeEastmaninventsflexiblephotographicfilm.1887ThomasEdisonpatentsmotionpicturecamera.1888Edisonattemptstorecordpicturephotosontoawaxcylinder.1891-1895Dicksonshootsnumer
2、ous15secondmotionpicturesusingEdison'skineograph,hismotionpicturecamera.1895FirstpublicdemonstrationofmotionpicturesdisplayedinFrance.1897DevelopmentoftheCathodeRayTubebyFerdinandBraun.1907Useofcathoderaytubetoproducetelevisionimages.1923Patentfortheiconoscope,thefor
3、erunnerofthepicturetube.1927TalkingfilmsbeginwithAlJolsonin"TheJazzSinger".Early1930sRCAconductsblackandwhitebroadcastingexperiments.1936FirsttelevisionbroadcastmadeavailableinLondon.1938InitialproposalforcolorTVbroadcastmadebyGeorgeValensi.1945 Therewerefewerthan7,0
4、00workingTVsetsinthecountryandonlyninestationsontheair;threeinNewYork,twoeachinChicagoandLosAngeles,andoneeachinPhiladelphiaandSchenectady,N.Y.RCAthatsamemonthholdsitsfirstpublicdemonstrationofanewTVcameraofferingasharperimagethanthosetheninuse.NeartheendofOctober,Gi
5、mbel'sDepartmentStoreinPhiladelphiaholdsthefirstlarge-scaleTVdemonstration.Morethan25,000peoplecomeoverthreeweeksforachancetowatchNBCprogramsfromNewYorkandlocalshowssentoutbyPhilco'sPhiladelphiastation.1946TheBlueNetwork,partofNBC,officiallybecomestheABCnetwork.A1941
6、FCCrulingrequiredRCAtodivestitselfofoneofitstwonetworks;NBCBluewassoldin1943toEdwardNoblefor$8million,andbecomesABCin1945. NBCandGillettestagewhat'sbilledasthefirst"televisionsportsextravaganza"--theJoeLouis-BillyConnheavyweightfightatYankeeStadium--inJune.Thefightis
7、aviewingsuccesswithanestimatedaudienceof150,000watching5,000sets.ForeveryTVsettunedintothefight,thereare,onaverage,30peoplewatching,manyseeinganeventonTVforthefirsttime.InOctober,theTelevisionBroadcastersAssociationdeclares"televisionisreadytoproceedonanexpandedbasis
8、,"andthatthenewindustryis"wellonthewaytobecomingoneofthemostimportantinthenation."1947"HowdyDoody,"achildren'sseries,premieresliveo
