The Love Boat episode they were watching, featuring Andy Warhol, aired for the first time in 1985. Not only is that nearly a decade after the year they were watching, but also after Truman Capote died.
At Kate Harrington's photo session with Richard Avedon, Avedon admonishes Capote for how Kate is made up and dressed by saying, "What's the matter with you? What do you think you're doing? It's 1978! What year are you stuck in?" The song "Last Night a DJ Saved My Life" being played (performed by InDeep) during the actual photo session, however, was released in 1982.