Bookers for late-night talk shows have been struggling to find A-list personalities willing to cross picket lines to appear on the shows when they return on January 2, the New York Times reported today (Thursday). An unnamed publicist told the newspaper that her agency is taking a wait-and-see approach in order to judge reaction to actors who do cross picket lines. Asked whether the shows had been able to book any guests, producers at each of the late-night shows declined to comment, the Times said. However, Donald Trump, who is booked on Late Night With David Letterman on January 2, personally phoned media outlets Wednesday to inform them that he will appear on the program to promote his The Celebrity Apprentice, which is due to debut on January 10. There was still no word on when Comedy Central's The Daily Show With Jon Stewart and The Colbert Report might return. "It's a little bit of a different challenge for them," a source told today's (Thursday) New York Post. "Even without writers, the other shows can fall back on booking additional guests or adding musical performers" to replace monologues and sketches that require writing talent. Both Comedy Central shows are formulated around topical satire.