What to watch on Thursday, September 17...
5:30pm, Cartoon Network
Sadie enlists Steven’s help organizing a Beachapalooza performance in “Sadie’s Song.” Then “Nightmare Hospital” sends Steven and Connie on a quest to liberate Pearl’s sword from the clutches of Connie’s mom.
Jeff Dunham: Unhinged in Hollywood
The ventriloquist performs at the Dolby Theatre, joined by special guests like Brad Paisley,Chris Parnell, and Chuck Liddell—none of whom, unlike Dunham’s usual coterie, are made of wood and nightmares.
Mat Franco’s Got Magic
The former America’s Got Talent champ road-trips from Rhode Island to Las Vegas, performing prestidigitation along the way and visiting with Neil Patrick Harris, Heidi Klum, Penn & Teller, and other guests.
An unconventional-materials challenge sends the designers scavenging for recycled electronic parts in “Haute Tech Couture.” Guest judges Paula Patton and fashion editor Anne Fulenwider have always thought a printed circuit board could make a lovely brooch.
SEASON 3 FINALE, 10pm, USA
The agents deal with the fallout of the gang war in “No Old Tigers,” while Briggs closes in on Ari Adamian.
SEASON 1 FINALE, 10pm, FX
In “Because We’re Legion,” Gigi connects with a big-shot West Coast producer thanks to Greg Dulli. Johnny’s totally stoked about this development, in part because Flash is very much not so.
The 5th Annual Streamy Awards
From the Hollywood Palladium, Grace Helbig and Tyler Oakley host the first televised edition of the gala honoring the best in online video. Annoyingly, the presentation of every category is preceded by a 13-second ad with no “skip” button.
10pm, Comedy Central
In “Murder, Magic 8 Ball, Procrastination,” Forrest follows the dictates of the fortune-telling toy, struggles to postpone productivity, and wrestles with his most challenging review to date.
The people of Vega are assailed by their deepest fears as the Darkness consumes the town in “Bewilderment of Heart.” Meanwhile, Alex hunts for the Amphora, David learns the true weight of a crown, William grapples with the truth about his time in the desert, and Arika winds up hoisted by her own petard.
“A Town, a Gangster, a Festival” spotlights the quaint Icelandic hamlet of Arborg and its annual celebration of Al Capone.
Russ and Lina experience the proverbial blast from the past during a trip to their alma mater in “1997.” What to Watch Tonight has set the over/under on “number of Titanic references in this episode” at 2.5.
Geeks Who Drink
Matthew MacCaull and Andrew Daly lead the teams.
– Emily Mortimer, Thomas Middleditch, and Andrew Sleighter on Conan, 11pm, TBS
– Tom Papa and Mike Yard on The Nightly Show With Larry Wilmore, 11:30pm, Comedy Central
– Kaley Cuoco, Wesley Snipes, and Chris Cornell on The Tonight Show Starring Jimmy Fallon, 11:35pm, NBC
– Naomi Watts, U.N. Secretary General Ban Ki-Moon, and Chris Stapleton on Late Show with Stephen Colbert, 11:35pm, CBS
– David Spade, Russell Westbrook, and A$AP Rocky on Jimmy Kimmel Live, 11:35pm, ABC
– Carol Burnett, Colin Hanks, Baio, and Abe Laboriel, Jr. on Late Night with Seth Meyers, 12:35am, NBC
– Terry Crews on The Late Late Show with James Corden, 12:37am, CBS