Mike, an atheist, reveals to Edith, Irene and Irene's sister Teresa (a nun) that he attended parochial school.
The final appearance of Barnard Hughes as Father John Majeski, who would soon go onto starring in the MTM sitcom "Doc" (1975).
Gloria serves horse meat for dinner, unbeknownst to Archie. Due to syndication, about 3 minutes are cut from each episode. Near the end, Archie says, "Jeez, I feel like I could eat a horse." In the edited version, that line is removed, yet we still see Gloria and Mike collapse in laughter on the couch (making it seem as though their laughing fit resulted from Irene's line "The Protestants have got you").
Father Majeski, before being interrupted by Archie, was going to the movies to see the 1973 film "Dillinger" starring Warren Oates.