Feel-good stories about politicians are hard to find these days. Thank goodness for UP TV’s delightful show “Small Town Big Mayer,” about the energetic yet beleaguered mayor of D’Lo Mississippi, John Henry Berry. This heartfelt series follows the Mayor as he enacts an enthusiastic plan to revitalize the small town that he loves. With clever timing and a focus on the townsfolk, the trailer communicates the deep connections people in a small town feel for each other, along with a self-aware humor that’s hard not to love.