Julie Chen signed off on Thursday night’s “Big Brother” using the last name of husband, ousted CBS boss Les Moonves. It appeared to be a clear statement in her first TV appearance since Moonves, resigned amid claims of sexual assault and harassment. Chen never referenced the scandal on the show, but her goodbye had everyone talking. Moonves denies all accusations of sexual assault. Julie has not yet returned to her hosting job on “The Talk” and the network is not saying when, or if, she will.