Lucie Arnaz designed the matching ensembles she and Jim Bailey wear during their song.
Kim says if substituting Jim Bailey for the ailing Phyllis Diller doesn't work the Mayor can stay in Los Angeles and it'll be her turn to leave town. This is a jab at special guest star Mayor Sam Yorty's reputation for extended travel away from Los Angeles. He was sarcastically known as 'Travelin' Sam' and 'Suitcase Sam' due to his frequent absence from City Hall.
When doing seating for the benefit show, Lucy says "Mr. and Mrs. Jack Aldworth contributed a lot of money." This is a nod to the "Here's Lucy" script supervisor Dorothy Aldworth and her husband Jack, a stage manager.