This was the first time that Rob Reiner and Christopher Guest worked together. Reiner would go on to act with and/or direct Guest in a number of future films including: This Is Spinal Tap (1984); The Princess Bride (1987) and A Few Good Men (1992).
This episode's flashback shows the Bunker home nine years in the past, which shows a wing-back chair that is different than Archie's classic chair., as well as the furniture in a different arrangement. While it is possible that Archie had more than one chair in the house it was established in the previous season episode Archie's Chair (1977) that he had been using his regular chair "for the past 28 years" in his "glory room" and had turned down an offer of $400 based on the sentimental value of it. In "Flashback: Mike Meets Archie" (1971), which couldn't have taken place long after the events of this episode, the living room is identical to how it appears in the "present day".
A loud fan in the live audience can be heard several times during the show. In one scene, she says "Oh no" right before Mike and Gloria kiss for the first time. Her comment gets a laugh from the audience.
Edith mentions Maude at the 23:48 Mark of the episode when describing her first date with Archie (although the name of Archie's pal has changed from Rupert Pratt to Jefferson Pratt).
This episode establishes Mike and Gloria meet in 1968.