The series finale, "The Revel," revolves around a party and the invitation date is given as June 4, 1946. A span of 13 years is therefore covered in nine seasons. There are some chronological inconsistencies, most of which do not hinder the storyline. The episode depicting the attack on
Pearl Harbor was actually broadcast on December 7, 1978, (a Thursday that year), which coordinated the memorable month and date on which the attack occurred, but not the day of the week (which was in reality a Sunday early morning), but on which day the series was broadcast.