Walter Cronkite 13 moon missions, Cronkite received the best ratings and made CBS the most-watched television network for the missions. In 1970, when Huntley retired, the "CBS Evening News" finally dominated the American TV news viewing audience. Although NBC finally settled on the skilled and well-respected broadcast journalist John Chancellor, Cronkite proved to be more popular and continued to be top-rated until his retirement in 1981. One of Cronkite's trademarks was ending the "CBS Evening News" with the phrase "...And that's the way it is," followed by the date. Keeping to standards of objective journalism, he omitted this phrase on nights when
Walter Cronkite events that alter and illuminate our times ... and you were there." In 1971, the show was revived and redesigned to attract an audience of teenagers and young adults, hosted again by Cronkite on Saturday mornings. In 1957, he began hosting "The Twentieth Century" (eventually renamed "The 20th Century"), a documentary series about important historical events of the century composed almost exclusively of newsreel footage and interviews. A long-running hit, the show was again renamed as "The 21st Century" in 1967 with Cronkite hosting speculative reporting on the future for another three years. Cronkite also hosted "It's News to Me",