With the opening ceremony of the London Olympic Games less than a week away, NBC counts down the “30 Greatest NBC Olympic Moments” (7 p.m. Saturday). The network’s name in that title means a lot. NBC has held exclusive broadcast rights to the Summer Olympics since 1988 and rights to the Winter Olympics since 2002. So don’t look for the “Miracle on Ice” from the 1980 Winter Olympics, or Jim McKay’s legendary coverage of the tragedy at the 1972 Summer Olympics in Munich. Those games were broadcast on ABC. It’s strange when history itself becomes corporate property.

• Tales of love and romance as well as doomed dalliances loom large on Saturday night. A nerdy accountant is forced to take lessons in love from a woman he’s harbored a crush on since high school in the 2012 romantic comedy “How to Fall in Love” (8 p.m., Hallmark), starring Eric Mabius, Brooke D’Orsay and Kathy Najimy.

On the other side of the romantic divide, there’s “Happily Never After” (9 p.m., ID), tales of marriage and love gone terribly wrong. “That Girl” star and “Free to Be You and Me” creator Marlo Thomas narrates each grim tale, where “till death do us part” arrives with sudden frequency. First up, a wedding party concludes with a bride stabbed in a jealous rage and a newly minted groom dragged away in handcuffs. Wendy Walsh, the relationship counselor from “The Doctors,” also offers commentary.

Lifetime has a thing for dangerous men with a badge. In January, “West Wing” alum Rob Lowe donned a bad hairdo and a shaky Chicago accent to star in “Drew Peterson: Untouchable,” about a bad cop with a string of missing wives who were all presumed murdered. Now Gary Cole stars in “An Officer and a Murderer” (7 p.m.), a harrowing tale based on true events. He’s a Canadian military officer whose habit of brutalizing women is finally curtailed by diligent local police work.

Saturday’s other highlights

• A gruesome accident leaves an officer with a thankless choice on “NYC 22” (7 p.m., CBS).

• An onscreen romance between Humphrey Bogart and Lauren Bacall in the 1944 thriller “To Have and Have Not” (7 p.m., TCM) also blossomed in real life.

• Scheduled on two installments of “48 Hours Mystery” (CBS): the death of a teenage girl (8 p.m.), exonerated in Memphis (9 p.m.).