They said it wouldn’t last. Or at least I did, when the new host of the longest-running late night show was going to be the kid from “Saturday Night Live.” But here it is: A two-hour special marking “10 Years of ‘The Tonight Show Starring Jimmy Fallon’” (NBC, 9 p.m.) that will be full of clips of him performing with musicians with children’s instruments, playing games with stars and gushing uncontrollably at other stars.
“Frontline” (CNN, 10 p.m.) investigates the story of Alex Saab, released from a federal prison in Miami and returned to Venezuela as part of a prisoner swap.
The 148th Westminster Kennel Club Dog Show (Fox Sports 2, 1 p.m.; Fox Sports 1, 7 p.m.) ends with Best of Show tonight.
The suddenly hot WNBA season begins with games that include Indiana at Connecticut (ESPN2, 7:30 p.m.) and Phoenix at Las Vegas (ESPN2, 10 p.m.).
The new true crime series “Hostage Rescue” (CW, 9 p.m.) finally premieres. The show about real-life hostage situations was supposed to start last month (Does this mean that the hostages have had to wait an extra month too?).
Curiously, the show plays opposite the season finale of “Alert: Missing Persons Unit” (Fox, 9 p.m.), a scripted show.
“The Express Way with Dulé Hill” (PBS, 9 p.m.) ends its season with a casting session with the Andre Theatre Collective.
A new season begins for the family with 14 children, “Doubling Down with the Derricos” (TLC, 8 p.m.).
“The Cleaning Lady” (Fox, 8 p.m.) hopes to regain normality to her family life.
The top nine are reduced to five as the voting results come in for the semifinals of “The Voice” (NBC, 8 p.m.).
“Will Trent” (ABC, 8 p.m.) looks into the death of a sex offender.
Dr. Claire Browne returns from her work in Guatemala for an appointment on “The Good Doctor” (ABC, 10 p.m.).
“The Rookie” (ABC, 9 p.m.) takes on a special case.
We have no specific information about the plots, but there are apparently new episodes tonight of “FBI” (CBS, 8 p.m.), “FBI: International” (CBS, 9 p.m.) and “FBI: Most Wanted” (CBS, 10 p.m.).
“Police 24/7” (CW, 8 p.m.) pursue a teen suspected of stealing a car.
Formula 1 driver Logan Sargeant races against the avatars of drivers past in the series “Lap of Legends” (AMC, BBC America, 10 p.m.).
“Vanderpump Rules” (Bravo, 8 p.m.) sees Sandoval called out by the press.
Jeremiah is sought for help on “Zatima” (BET, 10 p.m.).
“Moonshiners” (Discovery, 8 p.m.) devise a new kind of keg.
The final ATV of the season comes to “Mud Madness” (Discovery, 9 p.m.).
“Chopped” (Food, 8 p.m.) works with Italian olive oil from Puglia.
Julian hosts a big party on “Grand Cayman: Secrets in Paradise” (Freeform, 9:30 p.m.).
“7 Little Johnstons” (TLC, 10 p.m.) get a big announcement.
Summer vacation is winding down on “OutDaughtered” (TLC, 9 p.m.).
Turner Classic Movies’ month-long Tuesday night look at The Art of Artifice, or the work of sets and special effects are found in “Rancho Notorious” (8 p.m.), “Beach Party” (9:45 p.m.), “Breathless” (11:30 p.m.), “Two Weeks in Another Town” (1:30 a.m.), “Querelle” (3:30 a.m.) and “The Boy Friend” (5:30 a.m.).
Earlier today, TCM has stories set in the Gulf coast with “Key Largo” (6 a.m.), “Wind Across the Everglades” (8 a.m.), “Sweet Bird of Youth” (9:45 a.m.), “Bright Road” (noon), “Good-Bye, My Lady” (1:15 p.m.), “Louisiana Story” (3 p.m.), “Cry of the Hunted” (4:30 p.m.) and “The Drowning Pool” (6 p.m.).
NBA Playoffs have Indiana at Knicks (TNT, 8 p.m.) and Minnesota at Denver (TNT, 10:30 p.m.).
Stanley Cup Playoffs have Boston at Florida (ESPN, 7 p.m.) and Vancouver at Edmonton (ESPN, 9:30 p.m.).
Baseball includes Yankees at Minnesota (TBS, 7:30 p.m.).
Daytime Talk
Kelly Clarkson and Mark Consuelos: Chelsea Handler, Sarah Sherman, Mat Kearney. The View: George Stephanopoulos, Robert De Niro. The Talk: Walton Goggins, Patrick Brammall, Harriet Dyer. Drew Barrymore: Jennifer Connelly, Pilar Valdes. Kelly Clarkson: Chris Pine, Rita Ora, Brynn Cartelli. Jennifer Hudson: Chris Stapleton, Myka Meier. Tamron Hall: Alfonso Ribeiro.
Late Talk
Stephen Colbert: Jennifer Hudson, Marisa Abela. Jimmy Kimmel: Emily Blunt, Owen Teague, Carin León, Leon Bridges (rerun). Jimmy Fallon: Robert De Niro, Chelsea Handler, Ms. Lauryn Hill and YG Marley. Seth Meyers: Ed O’Neill, Nikki Glaser, Amor Towles, Jon Theodore. Taylor Tomlinson: Bert Kreischer, Katherine Blanford, Ric Eisen. Daily Show: Miranda July.