Jaclyn Smith, as a club singer, is wearing the same dress as she wore on the cover of "TIME" magazine (November 22, 1976). On the cover, she is joined by Farrah Fawcett and Kate Jackson in rather similar attire. Then, two days later on the 24th, this episode aired.
Martha Smith, who plays Shelly, later went on to co-star with Kate Jackson in Scarecrow and Mrs. King (1983) as Francine Desmond.
Dave Erhard's residence is the same filming location as Mark Wharton's residence in "The Six Million Dollar Man - Hocus-Pocus" and Harold Van Wick's residence in "Columbo - Playback"
The name label on Jill's handbag appears to have been made with a tape-fed embossing label maker, which were quite popular at the time.