Rhoda's middle name is revealed as "Fay".
The outdoor shots of Mary's apartment house have changed this season to a similar looking model of the original real Minneapolis house that had always been used before. The real-life owner of the original house at the time disliked the publicity of tourists coming by and had hung a large "Impeach Nixon" sign from the balcony that was supposed to be "Mary's" window to discourage any further footage of the house being filmed for the show.