Arnold Zenker Arnold Zenker Associates in Boston, which trains "people to successfully master the public spotlight." Arnold Zenker Arnold L. Zenker (born 1938) is a retired media broadcaster and public appearance counselor who gained brief stardom by sitting in for Walter Cronkite on the "CBS Evening News" in 1967. Zenker studied at the University of Pennsylvania in Philadelphia, from which he received an undergraduate and a law degree. In 1967 at the age of 28, he was asked to sit in for anchor Walter Cronkite to deliver the nightly news. Zenker, working as a Manager of News Programming at CBS at the
Walter Cronkite as the United Press main reporter in Moscow from 1946 to 1948. In 1950, Cronkite joined CBS News in its young and growing television division, again recruited by Murrow. Cronkite began working at WTOP-TV (now WUSA), the CBS affiliate in Washington, D.C.. He originally served as anchor of the network's 15-minute late-Sunday-evening newscast "Up To the Minute", which followed "What's My Line?" at 11:00 pm ET from 1951 through 1962. Although it was widely reported that the term "anchor" was coined to describe Cronkite's role at both the Democratic and Republican National Conventions, marking the first nationally televised convention coverage,