The name of the show comes from a combination of the main character's name (Kate) and her passion for art as it related to the famous UK art gallery, The Tate Modern.
The KateModern series takes the ongoing story from the Lonelygirl15 (2006) series, transposing it against a London backdrop. Major plot lines and story arcs are related between both series. Several characters from both series have communicated with each other, and a formal two-week cross-over was run between them in April 2008.