Gale Gordon does not appear in this episode and thus is not shown in the ending credits although he's billed in the opening credits.
The studio audience starts applauding for Vivian Vance as the doorbell rings and before she's spoken or entered.
Vivian Vance wears the same white-frame eyeglasses she wore as Vivian Bagley on "The Lucy Show."
Mary Jane tells Lucy that they have a wax figure of Lawrence Welk at the Movieland Wax Museum where her friend is the manager. The real-life museum was located in Buena Park, Caliifornia. A wax figure of Lucille Ball was installed there in 1963. The museum closed permanently in 2005.
Lucy phones Sam Lutz to find out how much Lawrence Welk is paid. He tells her that Welk gets $7,500 a night. Sam Lutz was the name of Welk's real-life manager and the producer of his television show.