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 Cronkite was the voice of Benjamin Franklin in the educational television cartoon "Liberty's Kids", which included a news segment ending with the same phrase he did back on the "CBS Evening News". His distinctive voice provided the narration for the television ads of the University of Texas, Austin, his alma mater, with its 'We're Texas' ad campaign. Cronkite voiced Tim's grandpa in the BrainPOP episode about aging. He held amateur radio operator license KB2GSD and narrated a 2003 American Radio Relay League documentary explaining amateur radio's role in disaster relief. the video tells Amateur Radio's public service story to non-hams,