The story of free Black Americans who enlisted in the U.S. Army and the complicated things that ensued are recounted in Dru Holley’s documentary “Buffalo Soldiers: Fighting on Two Fronts” (PBS, 10 p.m., check local listings).
Contestants on a new game show have to guess what people are Googling. Or in this case “Hey Yahoo” (Game Show Network, 8 p.m.). Tom Cavanagh hosts.
Speaking of game shows, “The Wall” (NBC, 9 p.m.) ends its fifth season in a new time slot.
The biggest thing tonight is likely Miami at Denver (ABC, 8:30 p.m.) in Game 5 of the NBA Playoffs. Nuggets lead the series 3-1 and could win it all tonight.
Luke tries to stand up to Brent on “Cruel Summer” (Freeform, 10 p.m.).
“American Ninja Warrior” (NBC, 8 p.m.) continues qualifying rounds in Los Angeles.
There’s a water crisis on “Stars on Mars” (Fox, 9 p.m.), where Christopher Mintz-Plasse was the first one eliminated last week.
Having announced his candidacy just last week, the first stop is a “CNN Republican Presidential Townhall with Chris Christie” (CNN, 8 p.m.).