From “Charmed” and “Grindhouse” to “The Pastor’s Wife” (7 p.m., Lifetime), Rose McGowan shows her range. She portrays Mary Winkler, the dutiful wife of Tennessee preacher Matthew Winkler. They were considered the perfect couple and model parents, until neighbors learned that Mary had fled the state with her children and that Matthew was dead from a shotgun blast.

Not so much a whodunit as a “why’d she do it?” this true story offers a perfect blend of Saturday night TV entertainment. It has the pastoral perfection of a Hallmark movie, complete with well-scrubbed houses and churches and neighbors bearing pies. And it delivers the sordid, tabloid tone of a “48 Hours Mystery.” By the end, we’re offered plenty of evidence of behavior behind closed doors that belied the veneer of wifely submission and domestic bliss.

Tonight’s other highlights

• Alabama hosts LSU in college football (7 p.m., CBS).

• More college football (7 p.m., ABC).

• Late-night phone calls rattle Mark on “Bedlam” (8 p.m., BBC America).

• “Color Splash” (8 p.m., HGTV) presents a “Twilight”-inspired makeover.

• Scheduled guests on “The Graham Norton Show” (9 p.m., BBC America) include James McAvoy, John Bishop and Arctic Monkeys.

• “Born Dealers” (9 p.m., Planet Green) follows the father-son team of antique dealers Jerry and Jeremiah Pasternak.

• Charlie Day hosts “Saturday Night Live” (10:30 p.m., NBC), featuring musical guest Maroon 5.