Ellen DeGeneres issues apology, vows ‘new chapter’ after on-set turmoil
LISA RICHWINE ELLEN DeGeneres has opened the new season of her popular television talk show by apologizing to staff after reports of a toxic work environment on her set and saying changes had been made to start "a new chapter." Three top producers on the "The Ellen DeGeneres Show" exited the show, producer Warner Bros. said in August after an internal investigation into complaints of bullying, racism and sexual misconduct against them. "I learned that things happen here that never should have happened," DeGeneres, 62, said in the opening monologue for the premiere of her show's 18th season. "I take…