After only six weeks on the air, CBS's Bette is undergoing a cast shake-up. Kevin Dunn, who plays Bette Midler's TV hubby Roy, has left the show and producers currently are searching for a replacement. "He wanted to do different work," Midler told the New York Post. "I don't think he liked the [sitcom] form." Dunn will continue to be seen through the show's 10th episode, which airs Jan 3.