The MVP of “Stronger Together,” who I kind of suspect will be the MVP of the entire series, is Cat Grant. Seriously, I would watch an entire hour each week of Calista Flockhart doing her best Devil Wears Prada impression while occasionally dropping feminist truthbombs on everyone. She is just great. And I don’t really think her character is portrayed particularly realistically — the head of CatCo is going to personally interview Supergirl? She’s not going to just send one of her hundreds of employees to do it for her and then reap the benefits? But this is a superhero show, so the realism is not exactly the point anyway.