The magazine rack behind Craig's drum set holds the November 3, 1967 issue of Time, which was almost a year old by the time this episode aired. A cartoon drawing of conservative journalist William Buckley is on the cover. There is also a copy of The New Yorker next to Time.
Jack Bannon (the Last Groom in Line) was the son of Bea Benadaret, who had played Iris Atterbury on Lucille Ball's radio show "My Favorite Husband" and elderly neighbor Miss Lewis on "I Love Lucy."
When a phone call tells Harry that he deals in antique carriages, Harry says "You mean surreys with the fringe on top"? This is a reference to a song from the 1943 stage musical (and 1955 film) "Oklahoma!" titled "The Surrey with the Fringe on Top."
Although he plays a high school student who is Kim's age, actor Don Crichton was 34 years old during this episode and looks significantly older than Kim.
The Nasty Man (Jack Donohue, who also directs the episode) calls Lucy a "kooky redhead" and Harry "fatso". After some name calling, Harry and the Nasty Man have a show down in the style Laurel and Hardy, alternately ripping each other's clothes to shreds, all underscored with the Laurel and Hardy theme music.