Racer snakes make life tough for baby marine iguanas — not only online but in its original form, as part of “Planet Earth II” (BBC America, AMC, Sundance, 9 p.m.), with its dazzling photography once more breezily narrated by David Attenborough. The only slight complaint I’d have it that it tends to give the false impression that wildlife moves in slow motion, but otherwise it’s top rate TV, with a surprising amount of of advances in photography since the first installment in 2006. The premiere concentrates on animal life on remote islands.
NBA’s All Star Weekend continues with the Slam Dunk Contest (TNT, 8 p.m.) that also includes the three point contest and skills challenge. Earlier, even the All Star Game Practice (NBA, noon) is televised as is the D-League All-Star Game (NBA, 2:30 p.m.), which is to say, no stars at all.
The latest pop star bio film treatment comes in “Britney Ever After” (Lifetime, 8 p.m.) with Natasha Bassett playing the singer who shaves her head during a meltdown and then has another comeback.
In the other made-for-TV film, “Love Blossoms” (Hallmark, 9 p.m.) a perfumer seeking a new scent falls for a botanist. Shantel VanSanten and Victor Webster star.
Last year’s “The Legend of Tarzan” (HBO, 8 p.m.) with Alexander Skarsgard, Margot Robbie, Samuel L. Jackson and Christoph Waltz., makes its premium cable premiere. The Steven Spielberg film “Bridge of Spies” (Showtime, 6:35 p.m.) with Tom Hanks is also on, but since it comes on the network’s free weekend, everyone can see it.
Why didn’t someone at the network think of this before? The reality show “The Zoo” (Animal Planet, 10 p.m.) takes a look behind the scenes at the Bronx Zoo.
A fanatical militia group leader takes retreat guests hostage on a new “Ransom” (CBS, 8 p.m.).
“48 Hours” (CBS, 10 p.m.) looks into the 2015 murder of a Florida woman.
The murder of a Spokane businessman gets two hours on “Dateline” (NBC, 8 p.m.).
“Dr. Jeff: Rocky Mountain Vet” (Animal Planet, 9 p.m.) treats a pack of wolves at a wildlife sanctuary.
Miss Robbie goes online dating on “Welcome to Sweetie Pie’s” (OWN, 9 p.m.).
Tests on the “MythBusters: The Search” (Science, 9 p.m.) includes six minutes in an infested coffin.
The 2006 animated “Flushed Away” (ABC, 8 p.m.) gets a prime time showcase.
Ryan prepares to leave for college on the second season premiere of “For Peete’s Sake” (OWN, 10 p.m.).
M moves to N on the alphabetical 31 Days of Oscar on Turner Classic Movies with “The Moon is Blue” (7:30 a.m.), “Morning Glory” (9:30 a.m.), “Mourning Becomes Electra” (11 a.m.), “Mrs. Miniver” (2 p.m.), “The Music Box” (4:30 p.m.), “The Music Man” (5:15 p.m.), “Mutiny on the Bounty” (8 p.m.), “Network” (10:30 p.m.), “The New Land” (12:45 a.m.) and “Ninotchka” (4:30 a.m.).
Hockey today includes Washington at Detroit (NHL, 2 p.m.) and Edmonton at Chicago (NHL, 7 p.m.).
Men’s college hoops include Notre Dame at North Carolina State (ESPN, noon), Davidson at Massachusetts (NBC Sports, noon), Northern Iowa at Wichita State (ESPN2, noon), Tulsa at Cincinnati (ESPNU, noon), Villanova at Seton Hall (Fox, 12:30 p.m.), Kansas at Baylor (CBS, 1 p.m.), Army at Navy (CBS Sports, 1:30 p.m.), South Florida at Tulane (ESPNews, 2 p.m.), St. Bonaventure at Dayton (NBC Sports, 2 p.m.), Florida at Mississippi State (ESPN, 2 p.m.), Texas Tech at West Virginia (ESPN2, 2 p.m.), Colorado at Oregon (Fox, 3 p.m.), Rhode Island at George Mason (NBC Sports, 4 p.m.), Saint Joseph’s at La Salle (CBS Sports, 4 p.m.), Michigan State at Purdue (ESPN, 4 p.m.), Central Florida at East Florida (ESPNews, 4 p.m.), Florida State at Pittsburgh (ESPN2, 4 p.m.), Auburn at Texas A&M (ESPNU, 4 p.m.), New Mexico at Fresno State (CBS Sports, 6 p.m.), SMU at Houston (ESPN2, 6 p.m.), Kentucky at Georgia (ESPN, 6 p.m.), TCU at Iowa State (ESPNews, 6 p.m.), Rutgers at Northwestern (ESPNU 6 p.m.), Arizona at Washington (ESPN2, 8 p.m.), Oklahoma at Oklahoma State (ESPNU, 8 p.m.), Xavier at Marquette (CBS Sports, 8 p.m.), Virginia at North Carolina (ESPN, 8:15 p.m.), Saint Mary’s at BYU (ESPN2, 10 p.m.) and UC Riverside at UC Irvine (ESPNU, midnight).
Women’s games include Army at Navy (CBS Sports, 11 a.m.).
Men’s college hockey includes Providence at Notre Dame (NBC Sports, 7 p.m.). Lacrosse has Georgetown vs. Notre Dame (ESPNU, 2 p.m.).
In golf, third round play continues in the Genesis Open (Golf, 1 p.m.; CBS, 3 p.m.).
“Austin City Limits” (PBS, 11 p.m.) replays a 2015 show with Sturgill Simpson and and Asleep at the Wheel.
The post-election episode of “Saturday Night Live” (NBC, 11:30 p.m.) hosted by Dave Chappelle and with performances by A Tribe Called Quest, was one of the best episode of the show in years.