Black Panther had the magic touch with the box office, but also worked wonders for ratings. Black Panther star Chadwick Boseman hosted last night's Saturday Night Live with musical guest Cardi B. The mix appeared to be a big hit with viewers, as the latest episode returned from hiatus with a 4.5 Live-plus-same day rating. According to Deadline, SNL also held a 1.9 ratings amongst adults ages 18 to 49, which is seen as the key demographic for advertisers.