Kicking off a serial killer week, we hear from one of them, Joel Rifkin, in the special “Rifkin on Rifkin: Private Confessions of a Serial Killer” (Oxygen, 7 p.m.).
The unwitting relations of a single sperm donor are traced in the documentary “Future People: The Family of Donor 5114” (Discovery+, streaming).
Oyanla Vanzant begins her eighth and final season of “Iyanla, Fix My Life” (OWN, 9 p.m.).
“True Hollywood Story” (E!, 10 p.m.) looks at superstar sisters, from Britney and Jamie Lynn Spears to Beyoncé and Solange Knowles.
Last year’s “American Masters” (PBS, 9 p.m., check local listings) on Toni Morrison is rerun.
“Willie Nelson: Highs and Lows” (Reelz, 8 p.m.) is followed by “Johnny Cash: Road to Redemption” (Reelz, 9 p.m.).
The Oscar movies that begin with H makes way for flicks that start with I just after midnight tonight on Turner Classic Movies, which begins the day with “Hide-Out” (6:45 a.m.), “High Society” (8:30 a.m.), “Hold Back the Dawn” (10:30 a.m.), “Honeysuckle Rose” (12:45 p.m.), “Hope and Glory” (3 p.m.), “How the West Was Won” (5 p.m.), “Hud” (8 p.m.) and “The Hunchback of Notre Dame” (10 p.m.) before moving to “I Am a Fugitive from a Chain Gang” (12:15 a.m.), “I Married a Witch” (2 a.m.), “I Never Sang for My Father” (3:30 a.m.) and “I Remember Mama” (5:15 a.m.).
Baseball includes Yankees at Tampa Bay (MLB, 1 p.m.), Oakland at Houston (Fox Sports 1, 4 p.m.) and Philadelphia at Atlanta (MLB, 7:30 p.m.).
There is third round play in The Masters (CBS, 3 p.m.).
Hockey has Florida at Dallas (NHL, 2 p.m.), Chicago at Columbus (NHL, 7 p.m.) and Edmonton at Calgary (NHL, 10 p.m.).
NASCAR runs its Blue-Emu Maximum Pain Relief 500 (Fox Sports 1, 7:30 p.m.).
College football includes Alabama A&M at Jackson State (ESPN, 3 p.m.) and Delaware at Delaware State (ESPN2, 6 p.m.).
College softball includes Alabama at Arkansas (ESPN2, noon), Duke at Florida State (ESPN2, 2 p.m.) and UCLA at Oregon (ESPN2, 4 p.m.).
Men’s college hockey has its championship game with St. Cloud State vs. UMass (ESPN, 7 p.m.).
Men’s college lacrosse includes Duke at Notre Dame (ESPNU, noon), Army at Loyola Md. (CBS Sports, 1 p.m.), Virginia at North Carolina (ESPNU, 2 p.m.) and Air Force at Jacksonville (CBS Sports, 5:30 p.m.).
Men’s college soccer includes Georgetown at St. John’s (CBS Sports, 3:30 p.m.).
And fishing has the Bassmaster Elite at Sabine River (Fox Sports 1, 8 a.m.).
Janelle Monae plays a 2018 episode of “Austin City Limits” (PBS, 11 p.m., check local listings).
Carey Mulligan hosts for the first time on a new “Saturday Night Live” (NBC, 11:30 p.m.) with musical guest Kid Cudi. A 2019 episode with Emma Stone and BTS is rerun at 10.