Last show of the series.
This was the final episode of the series. CBS had decided to cancel the series, changed their minds and decided to bring it back for season #13, then changed again and cancelled it. MacMurray, for one, was a bit disappointed and even commented so at the time. He stood to lose a lot of money, and his movie career was almost over. The others in the cast all believed it would return and were surprised when it was cancelled. It enjoyed fair ratings the last season, however, it did well enough to return based on normal practice at the time.
Russell Schulman, who played Gordon, was probably best known as the bully Buddy Hinton in a Brady Bunch episode.