All Times Eastern. PBS programming varies regionally. Reba McEntire stars as Bobbie, a widow who inherits her father’s bar and discovers that she has to share it with Isabella (Belissa Escobedo), the half sister she didn’t know she had. Meanwhile, Isabella has plans for big changes at the bar, which causes friction with Bobbie. Melissa Peterman, McEntire’s costar on Reba (2001-07), reunites onscreen with her real-life pal.