By Bill Keveney
Up All Night is losing one of its leads.
Christina Applegate, who stars as a wife and mother of a young child in the NBC comedy, is leaving the show as it prepares to switch visual formats.
Up started as a single-camera comedy without a studio audience along the lines of fellow NBC comedies The Office and 30 Rock, but it is switching to the more traditional multi-camera format, which features a studio audience.
"It's been a great experience working on Up All Night, but the show has taken a different creative direction and I decided it was best for me to move on to other endeavors," Applegate said in a statement obtained from her publicist. "Working with (executive producer) Lorne Michaels has been a dream come true and I am grateful he brought me into his TV family. I will miss the cast, producers and crew, and wish them the best always."
NBC declined comment on Applegate's announcement, including how it might affect the show's future. Five more episodes are planned this season, but broadcast dates have not been announced.
Up arrived with high hopes and strong credentials, including the involvement of Applegate and two other well-regarded actors, Will Arnett and Maya Rudolph, andSaturday Night Live's Michaels. However, the show failed to make much of a dent in the ratings. It is averaging 3.7 million viewers this season.