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A widower and aeronautical engineer named Steven Douglas raises three sons with the help of his father-in-law, and later the boys' great-uncle. An adopted son, a stepdaughter, wives, and another generation of sons join the loving family in later seasons.
First Air Date : Sep 29, 1960
Last Air date : Apr 13, 1972
Episode : 380 Episode
Season : 12 Season
Runtime: 30:25 minutes
Studio: CBS
Country: United States of America