I remember Arsenio Hall when he was the host of the Fox television network's The Late Show in the late 80's after Joan Rivers was kicked off and her husband Edgar Rosenberg committed suicide as a result because he was the show's executive producer. He was very funny then.
I just saw the show. I don't know what happen. It feels like he is trying to be just like every other late night show. :smt017 He just wasn't too funny.
He needs time. It will not be easy this time. He has to feel the audience out. Unfortunately, he has a lot to do and a short time to do it in.