Newly blonde Aubrey Plaza hosts “Saturday Night Live” (NBC, 11:30 p.m.) for the first time, with Sam Smith as musical guest. The “SNL” rerun at 10 p.m. is a show from 2010 with Sigourney Weaver and the Ting Tings.
The NFL divisional playoff rounds begin with Jacksonville at Kansas City (NBC, 4:30 p.m.) and Giants at Philadelphia (Fox, 8:15 p.m.).
The woman convicted of killing her ex-boyfriend in Arizona continues to be a popular subject for Lifetime true crime films. The newest one on the subject is “Bad Behind Bars: Jodi Arias” (Lifetime, 8 p.m.). Celina Sinden stars in the role of the woman who has been arrested and awaiting trial, charming an ex-con to help her.
Another made-for-TV movie tonight is also a sequel — the last of three in the “Wedding Veil” series, “The Wedding Veil Journey” (Hallmark, 8 p.m.) with Alison Sweeney and Victor Webster returning to play the couple now taking their honeymoon in Greece.
A second season begins for “Love & Marriage: D.C.” (OWN, 8 p.m.).
“Rico to the Rescue” (HGTV, 9 p.m.) helps a family who has lost faith in their contractor.
The question is asked again when “Giuliani: What Happened to America’s Mayor?” (CNN, 9 p.m.) is rerun.
“Floribama Murders” (Oxygen, 9 p.m.) looks into a suspicious death following Hurricane Ivan.