Peter White Television EditorSusan Rovner has officially started her new role as Chairman, Entertainment Content for NBCUniversal’s Television and Streaming division.The exec, whose last day as President of Warner Bros Television was Friday October 2, begins today in charge of creative strategy across all of NBCU’s broadcast, cable and streaming platforms as well as first-run syndication.Working alongside Frances Berwick, who was promoted to Chairman, Entertainment Networks in the company’s