Sonya Walger (Penny from “Lost”!) plays double duty in “The Good Sister” (Lifetime, 9 p.m.) a TV movie about a woman’s long lost evil twin, who starts to seduce the husband (Ben Bass). It can’t end well. Elsewhere, Bonnie Somerville goes to a resort after she’s forgotten on Mother’s Day in a original TV movie that serves as cautionary tale, “Mom’s Day Away” (Hallmark, 8 p.m.).
A second season starts for “In the Flesh” (BBC America, 10 p.m.), the witty import dealing with zombies as if it’s another adolescent malady.
This sounds awfully strange: “The Seven Dwarfs of Auschwitz” (Smithsonian, 9 p.m.) tells the story of a troupe of Jewish dwarf performers who survived Aushwitz and the experiments of Josef Mengele.
Sarah looks for origins of the clone experiment that has complicated her life on “Orphan Black” (BBC America, 9 p.m.).
The case of 11 women buried in New Mexico desert in 2009 is investigated on a two hour “Dateline” (NBC, 9 p.m.). The murder of an executive for Weight Watchers by her boyfriend is investigated on “48 Hours” (CBS, 10 p.m.).
Hugh Jackman and Paul Dano star in the thriller “Prisoners” (HBO, 8 p.m.), making its premium cable debut. Also on tonight: last year’s dim spoof “Scary Movie 5” (Showtime, 8 p.m.).
Anne Shirley gets the spotlight on Turner Classic Movies with “Stella Dallas” (8 p.m.), “Anne of Green Gables” (10 p.m.) and “Murder My Sweet” (11:30 p.m.). Later it’s the 1979 LSD suspense tale “Blue Sunshine” (TCM, 2 a.m.) followed by the Japanese horror import “Hausu” (TCM, 3:45 a.m.).
Epics from the 90s, played at three hours each: “Forrest Gump” (AMC, 8 p.m.) and “Goodfellas” (IFC, 8 p.m.). and at four: “Titanic” (Oxygen, 7 p.m.).
NBA payoffs move to prime time wih Miami at Brooklyn (ABC, 8:15 p.m.). Later, it’s San Antonio at Portland (ESPN, 10:30 p.m.).
In the Stanley Cup playoffs it’s Montreal at Boston (NBC Sports, 7 p.m.) and Anaheim at Los Angeles (NBC Sports, 9:30 p.m.).
Baseball includes Minnesota at Detroit (MLB, 1 p.m.).
Oh god, it’s still going on: The NFL Draft (ESPN, noon), rounds four, five, six and seven.
It’s just the third round of golf’s Players Championship (NBC, 2 p.m.).
Jack White plays a replay of “Austin City Limits” (PBS, 9 p.m., check local listings).
In the second to last episode of the season Charlize Theron hosts a new “Saturday Night Live” (NBC, 11:30 p.m.) with the Black Keys as musical guest. Earlier, in the one-hour cut down, it’s last week’s Andrew Garfield-hosted show with Coldplay at 10.