George & Tammy

DEC. 4, 9 P.M., SHOWTIME

Stand by your man? Michael Shannon and Jessica Chastain star in this six-part limited series about one of country music’s most famous couples, George Jones and Tammy Wynette. Together, they were unstoppable, touring the country and topping the charts. But behind the scenes, George’s struggle with substance abuse threatened to derail his music career as well as their marriage.