 Major U.S. networks (CBS, NBC, ABC and Fox) and some cable television channels (HBO, MTV and Nickelodeon), centered in New York City, were unable to broadcast normally, so backup stations and flagship transmitters in Dallas were used for prime-time TV.ABC ran their news broadcasts from Washington, D.C. instead.Manhattan, including Wall Street and the headquarters of the United Nations, was completely shut down, as were all area airports (with the exception of Newburgh's Stewart International Airport, which had once been a military airbase and had its own generators), and all New York-area rail transportation including the subway, the PATH lines between Manhattan and New Jersey, New Jersey Transit's rail service, Metro-North, and the Long Island Rail Road, though limited railroad service resumed early Friday morning through the use of diesel trains.