NBC's 'Shades of Blue' might not be perfect, but it shows how networks want to improve

NBC's solid and sometimes ambitious dirty-cop drama "Shades of Blue" (premiering Thursday) finds Jennifer Lopez taking yet another lap around the block. It's tempting to laugh off the pop superstar's attempt at glamming down (a rather sexy definition of "glammed down") and star in a "serious" show, but the results are not entirely unimpressive. In fact, "Shades of Blue" recalls that talented actress many of us only first noticed in the 1998 film adaptation of Elmore Leonard's "Out of Sight."