Plot: Captain Kangaroo was an American children's television series which aired weekday mornings on the American television network CBS for nearly 30 years, from October 3, 1955 until December 8, 1984, making it the longest-running nationally broadcast children's television program of its day. In 1986, the American Program Service integrated some newly produced segments into reruns of past episodes, distributing the newer version of the series until 1993