“The Flash” (CW, 8 p.m.) is hit with a force that makes him age prematurely.
Prehistoric footprints left by humans and animals during the Ice Age in New Mexico’s White Sands National Park are examined on a new “Nova” (PBS, 9 p.m., check local listings).
“Colombia — Wild and Free” (PBS, 10 p.m.), the nature showcase of the South American country, wraps up its season with a look at its Pacific coast and Andean volcanoes.
The two-hour special “The American Rescue Dog Show” (ABC, 9 p.m.) is a competition among canines nationwide.
Auditions continue on “So You Think You Can Dance” (Fox, 9 p.m.).
On “The Deep End” (Freeform, 10 p.m.), the Inner Circle hires a private investigator to help fight outside criticism.
Xiao’s prophecy may be coming true on “Kung Fu” (CW, 9 p.m.).
“If We Built It Today: Reconstructed” (Science, 10 p.m.) imagines what it took to make the Roman aqueducts.
Decisions are made in the finale of “Temptation Island” (USA, 9 p.m.), which is followed by a reunion show at 10.
Films that feature a score by Jerry Goldsmith are on Turner Classic Movies tonight with “Seven Days in May” (8 p.m.), “Papillon” (10:15 p.m.), “Poltergeist” (1 a.m.) and “The Wind and the Lion” (3 a.m.). During the day are more Around the World in 80 Movies in the morning with “In the Mood for Love” (6:30 a.m.), “The Hook” (8:15 a.m.) and “Kwaidan” (10 a.m.), Then comes a series of American documentaries on civil rights struggles from the 1960s: “Nothing but a Man” (1:15 p.m.), “Freedom on My Mind” (3 p.m.), “American Revolution 2” (5 p.m.) and “The Murder of Fred Hampton” (6:30 p.m.).
NBA playoffs have Boston at Miami (ESPN, 8:40 p.m.).
In the Stanley Cup Playoffs, it’s St. Louis at Colorado (TNT, 8 p.m.).
Daytime Talk
Kelly Ripa and Ryan Seacrest: Camilla Luddington, Gaten Matarazzo. The View: Joy Behar, Meredith Viera, Star Jones, Debbie Matenopoulos. The Talk: Jay Pharoah. Ellen DeGeneres: Bruno Mars. Drew Barrymore: Cameron Diaz (rerun). Kelly Clarkson: Nick Jonas, Robert Herjavec. Tamron Hall: Jeannie Mai Jenkins. Wendy Williams: Brittney Levine, Sherri Shepherd.
Late Talk
Stephen Colbert: Michael Che, James Stavridis. Jimmy Kimmel: Seth MacFarlane, Jay Ellis, Def Leppard. Jimmy Fallon: Jon Hamm, Jen Psaki, Jimmie Johnson. Seth Meyers: Jennifer Connelly, Chloe, Fineman, Danielle Ponder, Ulf Mickàel Wahlgren. James Corden: Miles Teller, Amanda Peet.