Now for the best new show on broadcast TV. But remember: Best, this fall, is graded on a curve. It’s a new comedy-drama from the CW, about a brand-new doctor at a tough Denver hospital. It’s called Emily Owens, M.D., and it’s basically Ally McBeal if she were a doctor instead of a lawyer: same insecurities, same internal monologues, same goofy charm. This time, the lovably vulnerable title character is played by Mamie Gummer, who had an impressive recurring role as Nancy the shrewd young attorney on The Good Wife. Gummer is the daughter of Meryl Streep. As on The Good Wife, she acts so genuinely, and winningly, that she deserves to be judged, and enjoyed, on her own terms.