'The World Wars': A young George Patton (played by Matt Dearman) stands in front of a tank during WWI. (Karolina Wojtasik/The History Channel)

Andi takes Eric on a first date during which they get lessons from snowboarder Louie Vito on “The Bachelorette” (ABC at 8 p.m.). Later, 14 of the men perform routines for a charity event at an exotic male revue.

RETURNING SHOW: Season 5 of “MasterChef” (Fox at 8) kicks off with 30 new contestants cooking their signature dishes for a chance to compete for a cookbook deal and a $250,000 grand prize.

RETURNING SHOW: “American Ninja Warrior” (NBC at 8 and 9) returns for its sixth season with one hour of the best moments of the show. Then, during the premiere, competitors face the qualifying obstacle course in Venice Beach, Calif.

“Death and the Civil War: American Experience” (MPT and WETA at 9) looks at how the enormous casualties of the Civil War changed America.

Two unlikely people come together to stop an impending terrorist attack on “24: Live Another Day” (Fox at 9).

“Petals on the Wind” (Lifetime at 9) is a sequel — already! — to January’s movie “Flowers in the Attic.” The Dollanganger children are 10 years older and attempting to put their sordid past behind them. Heather Graham and Ellen Burstyn reprise their roles; new adult kids, though.

The three-night docu-series event “The World Wars” (History at 9) presents the story of three devastating decades of war through the eyes of the powerful men who held the fate of mankind in their hands. The series examines 1914 and those coming of age at the time and follows through to 1945. Concludes Wednesday.

“Bomb Girls: Facing the Enemy” (Reelz at 9), a two-hour movie spinoff of the “Bomb Girls” series, has the ladies of Vic Mu banding together in the spring of 1943 while the Battle for the Atlantic rages and an Axis victory seems inevitable.

Actress Emma Stone and Robinson Cano of the Seattle Mariners stop by “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35). Keith Urban is the musical guest.

Comedians Don Rickles and Carmen Lynch come to “Late Show With David Letterman” (CBS at 11:35), and the band Ghost of a Saber Tooth Tiger plays.

Actor Nathan Lane and comedian Adam Carolla are on “Jimmy Kimmel Live” (ABC at 11:35). Musical guest: Royal Blood.

— Rachel Lubitz