Question: What date did this television program start that has the opening and closing theme music was written by composer who was an American avant-garde composer, pianist, author and inventor and born July 8, 1900?
Sentence (from "The 20th Century"): The Twentieth Century was a documentary television program sponsored by the Prudential Insurance Company that ran on the CBS network from 20 October 1957 until 4 January 1970.
Relevant evidence: Yes