Factual error: At the beginning of the episode, the male employees are all discussing James Bond. It is mentioned that 'James Bond goes underwater, he met a girl underwater'. This refers to the plot of the movie 'Thunderball' (it does not occur in the Thunderball novel, nor any novel or film prior to this). The main plot of this episode centres around the Sonny Liston VS Cassius Clay fight in May 1965, and 'Thunderball' was not released until December of that year.
Continuity mistake: Sally runs down the office hallway, trips and falls. Megan is there to hug her and we see Sally's right arm completely over Megan's left shoulder and Sally's left hand on Megan's right shoulder. From another angle, Sally has both her hands under Megan's arms with her hands on Megan's back. They go back and forth between these camera angles. (00:40:05)
Continuity mistake: While Dr. Miller speaks with Don in the kitchen, halfway through the conversation, you can see that her right arm is holding a cup high near her breast. However, in the shot from the back, you can see alternatively that the arm is held with a 90 degree bent, towards the kitchen counter. (00:34:45)