When Fox airs a live production of the musical “Grease” tonight at 7, it will give the

When Fox airs a live production of the musical “Grease” tonight at 7, it will give the Broadway show the Hollywood treatment. Here is a by-the-numbers look at what we mean by that:

v 412: The number of times “Grease: Live” director Thomas Kail can listen to consecutive replays of the song “Hand Jive.” Fresh off the success of his Broadway production “Hamilton” and his Tony Award for “In the Heights,” Kail is bringing his theater talents to the production of “Grease: Live,” and he’s not daunted by its scope and scale.

v 208: The number of costumes for the show’s 52 extras. Hundreds more outfits were needed for the dozen main cast members, most of whom change outfits at least four times each, said Tony Award-winning costume designer William Ivey Long, who commandeered an entire empty soundstage on the Warner Bros. lot just to house the show’s collection of clothing.

v 45: The number of camera positions needed to shoot scenes in disparate locations from multiple angles. Using 20 cameras, the show will do something almost unprecedented in live TV: taking cameras offline so they can be moved and reset for the various scenes.

v 45: The number of seconds it takes to travel between stages on a golf cart. But it isn’t idle time: Makeup artists, hairstylists and dressers will ride with the stars between scenes to help facilitate quick changes while the carts are in motion.

v 3: The age musical director Tom Kitt was when he first saw “Grease” in theaters.

“Grease: LIVE” (7 P.M., FOX): We’ve got chills, and they’re multiplying for this exuberant musical that whisks viewers back to Rydell High and rekindles the romance between Sandy (Julianne Hough) and Danny (Aaron Tveit). See story at right.

“American Ninja Warrior” (8 p.m., NBC): The third edition of “American Ninja Warrior: USA vs. the World” pits five-member teams from the United States, Japan and Europe battle for dominance in Las Vegas.

“All Things Valentine” (9 p.m., Hallmark): In the TV movie “All Things Valentine,” a writer (Sarah Rafferty) is about to give up on love – until she meets a handsome veterinarian (Sam Page). What she doesn’t know is that he’s the troll who has been leaving nasty comments on her dating blog.

TV listings, b8

ENTERTAINMENT NEWS

WaterFire festival announces dates

SHARON, PA.

WaterFire Sharon has announced that the dates for its three festivals this year will be July 16, Aug. 20 and Sept. 24. This will be the fourth season that the festival has been in downtown Sharon.

The arts and music event culminates each night in the lighting of wood in braziers anchored to the surface of the Shenango River.

Last year, the three WaterFire festivals drew about 60,000 people.