The purpose of creating a Pastel Yellow Family Talk Show Poster Template is to provide a visually appealing and customizable design for promoting a family talk show. The template includes placeholders for adding the show's title, date, time, and location, as well as images of the host and guests. The pastel yellow color scheme and modern design elements are intended to attract and engage potential viewers, while the customizable format allows for easy adaptation to fit the specific needs and branding of the show.