Like the Tennessee outsider she plays in “Malibu Country,” her new sitcom, Reba McEntire can relate to being a small fish in this land of swimming pools and movie stars.

She and her husband, Narvel Blackstock, moved to California from Nashville, Tenn., in 2001 so she could star in “Reba,” her first weekly comedy. The move was especially difficult on their son, Shelby, who was 11 at the time.