S6, E22: Darrin has just successfully signed the currently popular singing team of Boyce and Hart for a client sponsored special on television. He arrives home jubilant to find Samantha's cousin, Serena, visiting. Serena has been elected the chairman of the Cosmos Cotillion, an annual dinner dance of the "witch set," and must find some unique entertainment for the affair. After listening to the Boyce and Hart record that Darrin brought home, she decides that they will be perfect for the Cotillion. Samantha tries to talk her out of the whole idea, but to no avail. Serena goes to talk to Boyce and Hart and their manager, Chick Cashman. She quickly interests Chick Cashman in her offer, as she says she will pay three times their usual fee. However, when she tells them they will sing a song composed by her, they think she is a fake and throw her out.