Passage: The branch of CBS News that produces newscasts and features to radio stations is CBS News Radio. The radio network is the oldest unit of CBS and traced its roots to the company's founding in 1927, and the news division took shape over the decade that followed. The list of CBS News correspondents  includes those reporting on CBS News Radio. CBS News Radio produces the oldest daily news show on radio or television, the CBS World News Roundup, which first aired in 1938 and celebrates its 80th anniversary in 2018. The World News Roundup airs twice every weekday: a morning edition is anchored by Steve Kathan and produced by Paul Farry, while a "late edition" is anchored by Dave Barrett and produced by James Hutton. The evening Roundup, previously known as The World Tonight, has aired in its current form since 1956 and has been anchored by Blair Clark, Douglas Edwards, Dallas Townsend and Christopher Glenn . The CBS Radio Network provides newscasts at the top of the hour, regular updates at :31 minutes past the hour, the popular Newsfeeds for affiliates  at :35 minutes past the hour, and breaking news updates when developments warrant, often at :20 and :50 minutes past the hour. Skyview Networks handles the distribution.
Barring any breaking news, how many times does CBS offer news each hour? How many anchors does the World News Roundup have on weekdays? How many anchors has the evening Roundup had? How many different men have anchored the evening ROundup since 1956? How many regular updates does CBS Radio have each hour? How many times a day does the World News Roundup air? How many times does the program air on weekdays? How many years after CBS News Radio was founded did the World News Roundup program began airing? How many years after the founding of CBS did The World News Roundup first air? How many years after the founding of CBS did The World Tonight begin to air? How many years after the founding of CBS did the CBS World New Roundup first air? How many years has the CBS World News Roundup been in production? How many years has the World News Around up been airing? How many years has the evening Roundup aired in its current form? How many years passed between the founding of CBS radio and the ifrst airing of the CBS World News Roundup? Which program aired first, CBS World News Roundup or The World Tonight? Who is on the air first during the day, Dave Barrett or Steve Kathan?