Awful people are fun to watch. Look at the most popular TV shows today and you'll find casts full of awful, awful people doing terrible, terrible things to each other. “Orange is the New Black” centers on a stuck-up WASP who cheats on her husband in prison. “Breaking Bad” chronicles a chemistry teacher's descent into dealing meth as he destroys his entire family. “Girls” mocks its own cast, the most cartoonish twentysomethings-of-privilege ever conceived. These shows allow us to laugh at, judge, and secretly wish to emulate those we would, in reality, despise. While that's all fun, it's nice to see a respite from suffocating meanness. That's exactly what “Togetherness” , HBO's new comedy from the Duplass brothers (well known for “Safety Not Guaranteed”, “The Skeleton Twins”, and “ Jeff, Who Lives at Home”) , offers: nice, realistic people with nice, realistic problems. Somehow, it's totally engrossing. The first episode, “Family Day,” s...