Recommendations for Shows Like This

There are so few shows these days that wear their idealism on their sleeves. Most shows today are dark portrayals of humanity about ruthless cynics trying to claw their way to the top and keep their fiefdom by any means necessary or gritty character-studies of tragic anti-heros trying to survive. Shows that feature starry-eyed optimistic professionals who strive toward a better society using their words and their heads seem so few and far between in this cultural landscape that seems to emphasize the attitude of "might equals right."

Outside of obvious choices like other Sorkin shows, Babylon 5, or Star Trek, is there any other shows with a similar optimistic tone? General preferences are toward hour-long Dramas / "dramadies" (e.g. Newsroom, Mad Men, etc.) made within the last 10-15 years (not that I am biased against old shows, but I probably have watched some of the more popular ones). I am generally less inclined toward 1/2 Hour Sitcoms.