It’s not “Alien vs. Predator” but “Predator v. Prey” (BBC America, 8 p.m.), a new nature series series that follows lions, wolves and crocodiles going after bison, wildebeest and elephants . 

The NBA Playoffs begin in earnest with Orlando at Cleveland (ESPN, 1 p.m.), Phoenix at Minnesota (ESPN, 3:30 p.m.), Philadelphia at New York (ESPN, 8 p.m.) and Lakers at Denver (ABC, 8:30 p.m.). 

First round play begins in hockey’s Stanley Cup Playoffs with Islanders at Carolina (TBS, TruTV, 5 p.m.) and Toronto at Boston (TBS, TruTV, 8 p.m.).

Jocelyn Hudson plays a woman who takes her sister on the honeymoon trip she would have taken with her fiancé, who broke up with her. There she meets a tour guide (Dan Jeannotte) who picks up her mood in the made-for-TV romance “Falling in Love in Niagara” (Hallmark, 8 p.m.), with likely setting of the falls. 

The life and career of the actor is told in the two hour documentary “I Am Patrick Swayze” (CW, 8 p.m.). 

“Critter Fixers: Country Vets” (Nat Geo Wild, 9 p.m.) treat a shot cat. 

It’s not exactly James Brown. Instead, it’s “Joy Reid and Rachel Maddow Live at the Apollo” (MSNBC, 9 p.m.), where they spend two hours discussing Reid’s new book, “Medgar & Merle: Medgar Evers and the Love Story That Awakened America.” 

An undeclared gun is found on “Border Security: America’s Front Line” (National Geographic, 9 p.m.).

“Rocky Rapids Vet 9-1-1” (National Geographic, 10 p.m.) open a new spay and neuter clinic. 

The cast returns for a reunion on “Love & Marriage DC” (OWN, 8 p.m.). 

Director Paul Thomas Anderson introduces a double feature tonight on Turner Classic Movies with “Bugs Malone” (8 p.m.) and “The Bad News Bears” (10 p.m.). The 12 o’clock noir is “Born to Kill” (midnight), followed by two about the 17th century Queen Christina of Sweden, who fell in love with a cardinal, “The Abdication” (2 a.m.) and “Queen Christina” (4 a.m.). 

Baseball includes Tampa Bay at Yankees (MLB, 1 p.m.), Mets at Dodgers (Fox Sports 1, 4 p.m.) and Texas at Atlanta (MLB, 7 p.m.).

Auto racing includes ARCA: Talladega (Fox Sports 1, 12:30 p.m.), NASCAR’s Ag-Pro 400 (Fox, 4 p.m.), the Grand Prix of Long Beach (USA, 4:30 p.m.) and Chinese Grand Prix (ESPN, 3 a.m.).

There is third round play in the Heritage tournament (Golf, 1 p.m.; CBS, 3 p.m.) and the Chevron Championship (NBC, 3 p.m.). 

UFL action has Memphis at St. Louis (ABC, 12:30 p.m.) and D.C. at Birmingham (Fox, 7 p.m.). 

Professional lacrosse has has Buffalo at Las Vegas (ESPNU, 10 p.m.).

It’s Day 2 of the U.S. Olympic Wrestling Tournament (USA, 6:30 p.m.). 

College baseball includes TCU at Texas (ESPNU, 7 p.m.).

Women’s college gymnastics has its NCAA team finals (ABC, 4 p.m.).

Men’s college lacrosse includes Boston University at Lehigh (CBS Sports, noon), Virginia at Syracuse (ESPNU, 4 p.m.) and Maryland at Johns Hopkins (ESPNU, 4 p.m.).

College softball includes LSU at Tennessee (ESPN2, noon). 

St. Vincent and Joy Oladokun play an “Austin City Limits” (PBS, 11 p.m., check local listings) from 2022. 

Shane Gillis hosts a “Saturday Night Live” (NBC, 11:30 p.m.) from February with musical guest 21 Savage. Earlier, RuPaul and Justin Bieber host a rerun at 10 p.m.