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1949 THEATER TELEVISION 349
theater television since the motion picture industry has the resources id can adapt its technical knowledge to this new art. The time to act now.
APPENDIX
(1) Other uses of television by the motion picture industry might include (1) lership of television broadcast stations, and (2) development of pay-as-you-see ^vision schemes such as Zenith Radio Corporation's "Phonevision."
(2) Electronic-storage, as opposed to film-storage, methods are also under development, using the Skiatron tube (or P10 phosphor) and the so-called^ Swiss or AFIF Method, developed by Dr. F. Fischer of the Swiss Federal Institute of Technology. Electronic-storage methods, however, are not expected to be available for commercial use in the near future.
(3) A similar direct projection system has been developed in England. See A. G. D. West, "Development of theater television in England," J. Soc. Mot. Pict. Eng., vol. 51, pp. 127-169; August, 1948.
(4) The 20th Century-Fox report to the FCC of its experimental theater television operations contained the tentative conclusion: "The quality of a television picture having a total of 525 scanning lines per frame and a horizontal resolution in excess of 600 lines, with good picture contrast ratio, will approach that of 35-mm professional motion picture film, provided there is good half-tone reproduction, accurate line interlace, and specified minimum of geometric distortion. Such a value of horizontal resolution would require a video band-pass of between 7 and 8 megacycles."
(5) See 2 FCC Reports 308.
(6) The airline distance from Philadelphia to Baltimore is about 89 miles; from Baltimore to Washington, D. C., is about 35 miles.
(7) By A. T. and T. tariff filings made on January 14, 1949, effective March 1, 1949, this restriction on interconnection was relaxed somewhat. For example, if the customer orders service for a period longer than three months, in an area where the telephone company has no intercity channel facilities, the customer must give the telephone company 12 months' notice. But he will be informed within three months whether it will have facilities between the service points within a year. If such facilities will not be available, the customer may connect his facilities with those of the telephone company until three years from the service date, and he may continue to connect thereafter until the telephone company has facilities, subject to three months' notice from the telephone company. However, the FCC has suspended this tariff provision pending its consideration of the restriction on interconnection.
(8) Former FCC Commissioner E. K. Jett asked Mr. Larsen if any theater television was on the air. When Mr. Larsen answered that none was on the air, Commissioner Jett, pointing to the other demands for the frequencies in the 1000to 13,000-megacycle band, stated: "Apparently, you would want all the other radio services to stop dead in their tracks and wait for the development of theater television service until they can go ahead."