<P> The series debuted on September 17, 1969, and was last broadcast on March 1, 1972 . </P> <P> Bixby received an Emmy nomination for the show . </P> <P> Comedy producer James Komack served as both the creator and the executive producer of the show . </P> <P> The television show's theme song, "Best Friend", was written and performed by Harry Nilsson, and was played over opening credits showing Bixby and Cruz in various happy moments . The song has often been used since that time as an iconic indication of father - son bonding . </P>

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