This is the final episode for Don Grady. He gets written out of the show as having gone to Peru on a special project.
Served as a back door pilot for a proposed spin off series centering around Rob, Katie and the triplets. The series was scrapped when Don Grady decided to leave the show to pursue other acting opportunities.
Mike Minor (Clark Sullivan) had previously appeared in several episodes as an acquaintance of Mike's in the early years of the series.