What To Watch: When Calls The Heart Returns, Allen V. Farrow Docu And More

This daily feature is in addition to TVLine's monthly streaming list and Black History Month guide.
On TV this Sunday: Hallmark Channel returns to Hope Valley, HBO delves into the Allen v. Farrow saga and a pair of PBS dramas wrap their freshman runs. Here are 14 programs to keep on your radar; all times are Eastern.
Showtimes for February 21, 2021
American Gods
Shadow builds relationships in his new home of Lakeside; while Laura and Salim hunt Wednesday, the Old God attempts one last win over Demeter.
Boiling Point
The six-part docuseries explores "powerful throughlines that bridge our country's past and present," setting the stage for the civil rights battles of today. First up: the L.A. riots and Rodney King beating of 1992.
Miss Scarlett and the Duke
Season 1 finale: Duke and Moses help Eliza figure out the truth about what happened to her father.
The Simpsons
As Bart finds his old teacher's diary and learns a surprising secret, Lisa uncovers an even bigger surprise; the late Marcia Wallace guest-voices.
All Creatures Great and Small
Season 1 finale: Helen and James answer an emergency house call; Siegfried hosts a Christmas Eve party.
Allen v. Farrow
The four-part docuseries chronicles the sexual abuse accusations against Woody Allen involving his daughter Dylan, in addition to the director's custody trial with Mia Farrow and his relationship with Farrow's adopted daughter, Soon-Yi. (Watch trailer.)
Charmed
The Charmed Ones relaunch themselves in the human world after encountering a new, magical obstacle. (Already renewed!)
Disrupt and Dismantle
The Soledad O'Brien-hosted program tackles injustices that affect the Black community. First up: environmental racism in Dallas.
NCIS: Los Angeles
Callen is accused of being a spy following his interrogation of a Russian asset. (What was the purpose of that royally random joke?)
The Walking Dead Preview Special
Talking Dead's Chris Hardwick speaks to the cast and crew about what's to come in Season 10's bonus episodes. (AMC+ subscribers have access to the first episode today, ahead of its linear premiere on Feb. 28.)
When Calls the Heart
Season 8 premiere: Fiona begins an exciting new chapter; Elizabeth comes to terms with her feelings for Nathan and Lucas; Faith returns from medical school. (When does Good Witch return for Season 7?)
Wicked Tuna
Season 10 premiere: The coronavirus pandemic further complicates this year's bluefin season.
The Rookie
Chen considers undercover work; Nolan's return to school to become a TO is harder than expected; Castle vet guest-stars. (Who was Performer of the Week?)
Supervillain: The Making of Tekashi 6ix9ine
Giancarlo Esposito (The Mandalorian) narrates this three-part docu about the hip hop star's rise and fall, delving into his personal demons and social media mastery.
🤬 ON THIS DAY IN TV HISTORY 🤬
On Feb. 21, 1981, Saturday Night Live cast member Charles Rocket uttered the F-word during the curtain call. Rocket, new EP Jean Doumanian and fellow cast members Gilbert Gottfried and Ann Risley were subsequently fired, as part of a midseason retooling.