In the first of two “Murdoch Mysteries” (Ovation, 7 p.m.), Harry and Ogden are abducted by crazed foes.
A new documentary on a crucial Vietnam War battle is recounted on “The Misty Experiment: The Secret Battle for the Ho Chi Minh Trail” (World, 6 p.m.).
Hallmark is thinking of a very different time of year with “Next Stop, Christmas” (Hallmark, 8 pm.) and “Christmas in Tahoe” (Hallmark, 10 p.m.).
Melody introduces a new skincare line on “Love & Marriage: Huntsville” (OWN, 8 p.m.). On “Love & Marriage: D.C.” (OWN, 9 p.m.), Winter fails to clear the air with Ashley.
The Memorial Day Marathon on Turner Classic Movies is in full swing all day with “Darby’s Rangers” (6 a.m.), “Flying Leathernecks” (8:15 a.m.), “Thunder Afloat” (10:15 a.m.), “For Me and My Gal” (noon), “See Here, Private Hargrove” (2 p.m.), “Up Periscope” (4 p.m.), “Attack” (6 p.m.), “From Here to Eternity” (8 p.m.), “Fighter Squadron” (10:15 p.m.), “Bad Day at Black Rock” (midnight), “Breakthrough” (1:45 a.m.) and “Hell to Eternity” (3:30 a.m.).
Baseball includes Cleveland at Detroit (Fox Sports 1, 4 p.m.), Philadelphia at Mets (Fox, 7 p.m.) and Toronto at Angels (MLB, 10 p.m.).
Stanley Cup Playoffs have Carolina at Rangers (ESPN, 8 p.m.).
WNBA action includes Las Vegas at Chicago (ABC, 3 p.m.) and Washington at Connecticut (Facebook Watch, 7 p.m.).
NASCAR runs its Alasco Uniforms 300 (Fox Sports 1, 1 p.m.).
USFL games have New Jersey vs. Tampa Bay (USA, noon) and New Orleans vs. Michigan (Fox Sports 1, 9 p.m.).
There is third round play in the Senior PGA Championship (Golf, 1 p.m.; NBC, 2 p.m.) and the Charles Schwab Challenge (Golf, 2 p.m.; CBS, 5:30 p.m.).
There is also third round play in the French Open (Tennis, 5 a.m.; NBC, 11 a.m.).
In the IIHF World Championship semifinals, it’s U.S. at Finland (NHL, 7:20 a.m.) and Canada vs. Czech Republic (NHL, 11:20 p.m.).
Track and field has the Prefontaine Classic (NBC, 4:30 p.m.).
The NCAA men’s lacrosse semifinals has Cornell vs. Rutgers (ESPN2, noon) and Maryland vs. Princeton (ESPN2, 2:30 p.m.).
The NCAA softball tournament includes Florida at Virginia Tech (ESPN, noon), Central Florida at Oklahoma (ESPN, 2 p.m.), Arizona at Mississippi State (ESPNU, 6 p.m.), Duke at UCLA (ESPN2, 8:30 p.m.) and Northwestern at Arizona State (ESPN2, 11 p.m.).
Leon Bridges and Khruangbin play an “Austin City Limits” (PBS, 11 p.m., check local listings) from last year.
“Saturday Night Live” (NBC, 11:30 p.m.) begins a summer of reruns with the one from October hosted by Kim Kardashian with musical guest Halsey.