When Katy gets frustrated with Lucy, she suggests her friend leave and check into another hotel. Two well-known establishments are mentioned: the Plaza Hotel and the Pierre Hotel (both in New York City). The Plaza is on the corner of 5th Avenue and 59th Street in Manhattan and opened to the public in 1907. The PIerre is a luxury hotel in NYC that opened in 1930 and is situated on Fifth Avenue at 61st Street, facing Central Park.
It is revealed that Lucy is staying in one of the hotel's finer rooms, Suite 341.
Lucy says that she calls herself 'Lucille' when things get serious. Katy doesn't really go around calling herself by her given name, 'Kathleen.'
The pills that Katy gives Lucy are called Rock-a-Bye Sleep Tablets.
Lucy (disguising her voice, on the phone): Oh, they must've given me the wrong extension. I'm calling Pussycat.
Katy (also on phone, to Lucy): Who?
Lucy: Oh, I'm sorry. I mean, Mr. Devery.
Katy: Mr. Devery?
Katy: We have a Mr. James Devery here. There's no one by the name of Pussycat.
Lucy: That's what I call Mr. Devery. May I speak to him, please? Just tell him Cookie is calling.
Lucy: Not Kooky. Cookie.
Ann Sothern would team up again with her lifelong friend Lucille Ball for six episodes of Lucy's second sitcom, The Lucy Show, in the mid-1960s.
This crossover episode means that Lucy Ricardo has traveled in from her house out in the country, since 'The Lucy-Desi Comedy Hour' takes place in Connecticut, while 'The Ann Sothern Show' occurs in New York City. Also, an episode of 'The Danny Thomas Show' at UCLA indicates that Lucille Ball made another sitcom crossover in the late 1950s playing her famous Lucy Ricardo character.
Desi Arnaz does not appear on screen with wife Lucille Ball, but he does serve an off-camera role as the executive producer of this series. The series is jointly produced by Anso (Ann Sothern's production company) and Desilu.
Ann Sothern appears in an episode of The Lucy-Desi Comedy Hour as Susie (her previous tv character). Thus, in this episode we learn that Lucy Ricardo is friends with both of Ann Southern's tv personas.