A reminder that there will no Jerry Lewis Telethon on Labor Day (and there hasn’t been one in 10 years). To compensate, there’s a whole Jerry Lewis marathon on Turner Classic Movies today, where he’s featured for the first time on Summer Under the Stars. It features “Which Way to the Front?” (6 a.m.), “At War with the Army” (8 a.m.), “Sailor Beware” (10 a.m.), “Scared Stiff” (noon), “You’re Never Too Young” (2 p.m.), “The Caddy” (4 p.m.), “Rock-a-Bye Baby” (6 p.m.), “The Nutty Professor” (8 p.m.), “The Ladies Man” (10 p.m.), “The Disorderly Orderly” (midnight), “Smorgasbord” (2 a.m.) and “Cookie” (4 a.m.).
The author of “Waiting to Exhale” and “How Stella Got Her Groove Back” has another novel adapted to film, “Terry McMillan Presents: Tempted by Love” (Lifetime, 8 p.m.), in which Garcelle Beauvais plays a chef in Europe who returns home to care for her aunt gets to know the young driver who meets her at the airport (Vaughn W. Hebron).
Another made-for-TV romance tonight is “A Costa Rican Wedding” (Hallmark, 8 p.m.) stars Rhiannon Fish as a clumsy maid of honor who gets help from a nemesis (Christopher Russell).
“Mammals” (BBC America, 8 p.m.) looks at the warm-blooded creatures of the forest.
A third season starts for the culinary competition “Chef Swap at the Beach” (Cooking, 7 p.m.) at Myrtle Beach. Mason Zeglen hosts; Dylan Foster and Johanna Wilson Jones are judges.
Kim and Maurice host a tasting on “Love & Marriage: Huntsville” (OWN, 8 p.m.).
Chevy Chase and Beverly D’Angelo star in “Vegas Vacation” (Sundance, 6:15 p.m.), “National Lampoon’s Vacation” (Sundance, 8:15 p.m.) and “National Lampoon’s European Vacation” (Sundance, 10:15 p.m.).
Preseason NFL has Atlanta at Baltimore (ABC, noon), Cincinnati at Chicago (NFL, 1 p.m.), Detroit at Kansas City (NFL, 4 p.m.), Washington at Miami (CBS, 7 p.m.), Buffalo at Pittsburgh (NFL, 7 p.m.) and Dallas at Las Vegas (NFL, 10 p.m.).
Baseball includes Yankees at Detroit (MLB, 1 p.m.), Arizona at Tampa Bay (MLB, 4 p.m.) and Atlanta at Angels (MLB, 9:30 p.m.).
WNBA action has Minnesota at Washington (CBS, 2 p.m.) and New York at Las Vegas (CBS, 4 p.m.).
There is third round play in the St. Jude Championship (Golf, 1 p.m.; NBC, 3 p.m.).
Motor sports include the Austrian Grand Prix Sprint (TruTV, 8:30 a.m.), the Cabo Wabo 250 (USA, 3:30 p.m.) and the Bemmarito Automotive Group 500 (USA, 6:30 p.m.).
Canadian football has Edmonton at Hamilton (CBS Sports, 7 p.m.).
Various performances of Nanci Griffith over the years on “Austin City Limits” (PBS, 11 p.m., check local listings) are collected.
“Saturday Night Live” (NBC, 11:30 p.m.) returns for the first time since the Olympics. Tonight’s rerun is the Nate Bargatze show with the Foo Fighters from last October.