nationalParkA special two-hour episode of “Vanished” (History, 8 p.m.) looks at all the missing persons cases that have occurred in national parks. It was made before the government shutdown led to the vanishing of oversight and maintenance crews there. Soon the only look inside the treasures may be through events like today’s 15 hour marathon of  “America’s National Parks” (National Geographic, 3 p.m.).

NFL playoffs begin with the wild card round, with Indianapolis at Houston (ESPN, 4:30 p.m.) in the AFC and Seattle at Dallas (Fox, 8 p.m.) in the NFC.

“Surviving R. Kelly” (Lifetime, 9 p.m.) ends its shattering three days with a look at how the world today is affected. It’s been the highest rated program on Lifetime in more than two years.

Jerry Seinfeld is guest on “The Alec Baldwin Show” (ABC, 10 p.m.).

The premiere of “The Titan Games” (NBC, 8 p.m.), which drew 6.5 million viewers Thursday, is rerun among all the other network reruns.

Good show for a Saturday night: The documentary on the first person hired to appear on “SNL,” Gilda Radner, “Love, Gilda” (CNN, 9 p.m.).

Christmas may be over but the seasonal romances continue with “Winter Castle” (Hallmark, 8 p.m.) in which Emilie Ullerup goes to an ice hotel for her sister’s destination wedding and falls for the best man, Kevin McGarry, who has come with a guest, Meghan Heffern.

“Super Troopers 2” (HBO, 8 p.m.), the comedy about hapless cops on the other U.S. border, makes its premium cable debut. Better is Jessica Chasten in Aaron Sorkin’s “Molly’s Game” (Showtime, 9 p.m.) or even the remade drug hustling flick “SuperFly” (Starz, 8 p.m.).

Recently named the most influential film in history, the 1939 “The Wizard of Oz” (TNT, 9 p.m.) plays again on its 80th anniversary.

The two hour, 17th season premiere of “Say Yes to the Dress” (TLC, 8 p.m.) is more emphatic than usual  in an episode titled “Hell Yes to the Dress.”

A house-hunting show borrows their phrase on “Say Yes to the Nest” (HGTV, 10 p.m.).

A special two hour compilation of “Crikey! It’s the Irwins” (Animal Planet, 10 p.m.) concentrates on their interactions with crocodiles.

“Gunfight at the O.K. Corral” (TCM, 8 p.m.) is paired with “Gunfight at Comanche Creek” (TCM, 10:15 p.m.). They are followed by the noir “His Kind of Woman” (TCM, midnight), and two featuring Paulette Goddard —  Charlie Chaplin’s silent “Modern Times” (TCM, 2:15 a.m.) and the 1947 “An Ideal Husband” (TCM, 4 a.m.).

In basketball, it’s Toronto at Milwaukee (NBA, 8:30 p.m.).

Hockey has Calgary at Philadelphia (NHL, 1 p.m.) and Tampa Bay at San Jose (NBC Sports, 11 p.m.).

College football has Eastern Washington vs. North Dakota State (ESPN2, noon) in the FCS championship.

Men’s college basketball includes Michigan State at Ohio State (Fox, noon), Creighton at Butler (Fox Sports 1, noon), Central Florida at Connecticut (ESPNews, noon), Kentucky at Alabama (ESPN, 1 p.m.), Cincinnati at East Carolina (CBS Sports, 1 p.m.), St. John’s at Georgetown (CBS, 1 p.m.), La Salle at Massachusetts (NBC Sports, 1 p.m.), Kansas State at Texas Tech (ESPNU, 2 p.m.), Villanova at Providence (Fox, 2 p.m.), Wake Forest at Georgia Tech (NBC Sports, 2 p.m.), Florida State at Virginia (ESPN2, 3 p.m.), Baylor at TCU (ESPNU, 4 p.m.), Kansas at Iowa State (ESPN2, 5 p.m.), South Florida at Tulsa (ESPNU, 6 p.m.), Duquesne at Davidson (NBC Sports, 6 p.m.), South Carolina at Florida (ESPN2, 7 p.m.), Clemson at Duke (ESPN, 8 p.m.), Nevada at New Mexico (ESPNU, 8 p.m.), West Virginia at Texas (ESPN2, 9 p.m.), San Diego State at Boise State (CBS Sports, 10 p.m.), Wyoming at UNLV (ESPNU, 10 p.m.) and BYU at Saint Mary’s (ESPN, 11 p.m.).

Women’s games include Fordham at George Washington (CBS Sports, 11 a.m.), South Florida at Temple (CBS Sports, 3 p.m.) and Central Florida at Memphis (CBS Sports, 5 p.m.).

In golf, there is third round play in the Tournament of Championships (NBC, 4 p.m.; Golf, 6 p.m.).

In college hockey, it’s Michigan at Notre Dame (NBC Sports, 3:30 p.m.).

In hockey’s world junior championship, it’s Russia vs. Switzerland (NHL, 4 p.m.) in the bronze medal game and U.S. vs. Finland (NHL, 8 p.m.) in the gold medal game.

High school kids play the All-American Bowl (NBC, 1 p.m.).

Trombone Shorty and Orleans Avenue play the first new “Austin City Limits” (PBS, 11 p.m., check local listings) of the calendar year.

It’s another rerun on “Saturday Night Live” (NBC, 11:30 p.m.) with Liev Schreiber hosting and Lil Wayne as musical guest.