AdnanOne would think the death of a high school girl in Baltimore would have been adequately covered in the first season of the “Serial” podcast. But there is much more to the story and quite a bit to update in Amy Berg’s “The Case Against Adnan Syed” (HBO, 9 p.m.), a four-part documentary series that includes hiring investigators to look at some other suspects.

The visual aspect not only brings dreamy drone photography of the areas where it all unfolded, previously only described, we also get to see how old everybody has become, 20 years after the teen’s death. And the victim’s diaries are illustrated in the hearts-and-flowers manner in which they were written.

More true crime is found in in the new documentary series “Finding Justice” (BET, 8 p.m.), concentrating on racial injustice in six different cities, starting with Tampa.

The title of Gregg Araki’s new series “Now Apocalypse” (Starz, 9 p.m.) inverts the name of the great Vietnam movie for a messy mix of sci-fi and millennial sexcapades. Amid the hooking up and drug-taking, lizard-like aliens start appearing (possibly because no other story would have panned out). Co-writing the series with the proclaimed king of New Queer Cinema is the sex columnist from Vogue.

“Shameless” (Showtime, 9 p.m.) has its season finale, with a decision to make about Frank.

But it’s the apparent series finale for “Crashing” (HBO, 10 p.m.), which has had a pretty strong third season, but had its fate announced just this week. John Mulaney guest stars in the final episode.

It was also announced Friday that this would be the last season for “SMILF” (Showtime, 10 p.m.), which the network pulled the plug on apparently because of behind the scenes problems. The rest of its season will play out.

A married couple gets a special delivery on “High Maintenance” (HBO, 10:41 p.m.).

“Last Week Tonight with John Oliver” (HBO, 11 p.m.) is always a good way to end the weekend.

Mo takes Blair on his bachelor party on “Black Monday” (Showtime, 10 p.m.).

On “The Walking Dead” (AMC, 9 p.m.), Alpha retaliates after Daryl’s rescue mission.

A new West Coast spinoff occurs when three doctors from Atlanta fly west for “Married to Medicine: Los Angeles” (Bravo, 9 p.m.).

It’s Cake Boss Buddy Valastro against chef Duff Goldman in the new baking competition “Buddy vs. Duff” (Food, 9 p.m.).

Auditions continue on “American Idol” (ABC, 8 p.m.), which is not to be confused with  “American Gods” (Starz, 8:05 p.m.), which begins its second season.

Qualifying rounds conclude on “World of Dance” (NBC, 8 p.m.).

“The Circus: Inside the Wildest Political Show on Earth” (Showtime, 8 p.m.) begins to parse the Democratic candidates for 2020.

“Supergirl” (CW, 8 p.m.) tries to tamp down the anti-alien movement.

Marge takes up kite boarding on “The Simpsons” (Fox, 8 pm.).

On “Bob’s Burgers” (Fox, 8:30 p.m.), Bob gets a day off.

Miles is helping people open restaurants now on “God Friended Me” (CBS, 8 p.m.).

On “Good Girls” (NBC, 10 p.m.), the existence of a witness challenges the women’s morality.

Gunrunners are on the loose on “When Calls the Heart” (Hallmark, 8 p.m.).

Macy is watching too much TV on “Charmed” (CW, 9 p.m.).

House shopping is always a chore on “Sister Wives” (TLC, 8 p.m.).

Kandi has a setback before the premiere of her burlesque show on “The Real Housewives of Atlanta” (Bravo, 8 p.m.).

Kristin goes to Palm Springs on “Very Cavallari” (E!, 10 p.m.).

On “Meet the Peetes” (Hallmark, 9 p.m.), a job fair is thrown for young people with autism.

Turner Classic Movies begins a month-long Sunday night look at the Irish in Film with “Top O’ the Morning” (8 p.m.) and “Peg O’ My Heart” (10 p.m.). They are followed by the silent “When a Man Loves” (midnight) with John Barrymore. Then, three from Jaques Tati: “Jour de Fete” (2 a.m.), “Trafic” (3:45 a.m.) and “The School for Postmen” (5:30 a.m.).

NBA action has Indiana at Philadelphia (ABC, 3:30 p.m.), New Orleans at Atlanta (NBA, 6 p.m.) and Phoenix at Golden State (NBA, 8:30 p.m.).

Hockey includes Boston at Pittsburgh (NBC Sports, 7:30 p.m.) and Los Angeles at Anaheim (NBC Sports, 10 p.m.).

Spring baseball includes Boston vs. Tampa Bay (MLB, 1 p.m.) and Arizona vs. Cincinnati (MLB, 4 p.m.).

Men’s college basketball includes Houston at Cincinnati (CBS, noon), Illinois at Penn State (Fox Sports 1, noon), Navy at Colgate (CBS Sports, noon), Garner-Webb at Radford (ESPN, 1 p.m.) in the Big South championship, Connecticut at East Carolina (ESPNU, 2 p.m.), Lehigh at Bucknell (CBS Sports, 2 p.m.), Bradley vs. Northern Iowa (CBS, 2:10 p.m.) in the Missouri Valley championship, Liberty at Lipscomb (ESPN, 3 p.m.) in the Atlantic Sun championship, SMU at South Florida (ESPNU, 4 p.m.), Wisconsin at Ohio State (CBS, 4:20 p.m.) and Canisius vs. Monmouth (ESPNU, 8:30 p.m.).

Women’s games include Louisville vs. Notre Dame (ESPN2, noon) in the ACC championship, Fordham vs. VCU (ESPNU, noon) in the Atlantic 10 championship, Marquette vs. St. John’s (Fox Sports 2, 1 p.m.), Mississippi State vs. Arkansas (ESPN2, 2 p.m.) in the SEC championship, Kansas State vs. Baylor (Fox Sports 1, 3 p.m.), Villanova vs. Georgetown (Fox Sports 2, 3:30 p.m.), South Florida vs. Connecticut (ESPN2, 4 p.m.), Iowa State vs. Texas (Fox Sports 1, 5:30 p.m.), Maryland vs. Iowa (ESPN2, 6 p.m.) in the Big Ten championship, Central Florida vs. Cincinnati (ESPNU, 6:30 p.m.), DePaul vs. Providence (Fox Sports 2, 7 p.m.), Oregon vs. Stanford (ESPN2, 8 p.m.) in the Pac-12 championship and Creighton vs. Butler (Fox Sports 2, 9:30 p.m.).

Final rounds are played in the Arnold Palmer Invitational (Golf, 12:30 p.m.; NBC, 2:30 p.m.).

Auto racing has the Grand Prix of St. Petersburg (NBC Sports, 1:30 p.m.) and the TicketGuardian 500 (Fox, 3:30 p.m.).

And Alliance of American Football games have Memphis at Atlanta (CBS Sports, 4 p.m.) and San Antonio at Arizona (NFL, 8 p.m.).

Sunday Talk

ABC: White House national security adviser John Bolton. CBS: Sen. John Kennedy, former Gov. John Hickenlooper, former acting FBI director Andrew McCabe. NBC: Sen. Sherrod Brown, Reps. Liz Cheney, Adam Schiff. CNN: Former HUD Sec. Julian Castro, Gov. Jay Inslee, Reps. Will Hurd and Eric Swalwell. Fox News: White House economic adviser Larry Kudlow, Rep. Katie Hill.