The best show on TV right now, [ATLANTA] is about working-class African-Americans in the Southern suburbs, and it highlights one of the country’s biggest, least-appreciated problems: living without a car in the midst of sprawl.  Earn, the show’s main character (played by Glover), doesn’t own a car. He works at the airport, one of the few major spots in Atlanta well served by the city’s limited transit system. But getting to the train is another story. Hardly anyone, especially anyone who isn’t affluent, lives right near a train station. So Earn rides the bus to the train, suffering through long, slow rides and walking on streets without sidewalks.