* Lawrence Spivak, 93, originator of NBC's "Meet the Press" and pioneer of television's Sunday news show format, died yesterday of congestive heart failure in Washington. He was moderator of "Meet the Press" from its beginning in November 1947 until November 1975. "It's the roar of the presses, working day and night in the north, south, east and west of our nation," he said in introducing his first show.