MythBustersAfter 14 seasons and countless explosions, “MythBusters” (Discovery, 8 p.m.) comes to an end. Discovery’s longest running show has featured celebrity guests over the years from Seth Rogen to Aaron Paul and President Obama. But it’s mostly been about Adam Savage and Jamie Hyneman and their small staff, recreating various phenomenon or testing out theories with a good dab of humor.

When the smoke clears for their final experiment, involving a “Breaking Bad” like RV blowing up in the desert, the two will stick around to talk about the show in a episode at 9 p.m.

In its time, “MythBusters” has certainly been an influential show, leading to things like the glow stick explosions of “Outrageous Acts of Science” (Science, 9 p.m.), which is also on tonight.

Results of the Kansas caucuses, Kentucky and Maine Republican caucuses and Nebraska Democratic caucuses as well as the Louisiana primary get some Saturday night coverage on America’s Choice 2016 (CNN, 8 p.m.), America’s Election HQ (Fox News, 8 p.m.) and The Place for Politics (MSNBC, 8 p.m.).

“Doctor Who” (BBC America, 9 p.m.) faces his toughest challenge in a new episode.

A couple hires a “Nightmare Nurse” (Lifetime, 8 p.m.) in a new made-for-TV movie starring Sarah Butler, Lindsay Hartley, Stephen Good and Traci Lords as a puffy-faced nurse.

On the new series “Mountain Life” (HGTV, 11 p.m.) a family seeks the perfect outdoorsy home in Stowe, VT.; in a second episode, a couple looks for one in the Wasatch Range of the Rockies. They follow a new episode of “House Hunters Renovation” (HGTV, 10 p.m.).

The Melissa McCarthy comedy “Spy” (HBO, 8 p.m.) makes its premium cable debut.

Also on tonight: Amy Adams as the artist Margaret Keane in Tim Burton’s “Big Eyes” (Showtime, 8 p.m.) and last year’s remake of “Poltergeist” (Cinemax, 10 p.m.).

“Oprah: Where Are They Now?” (OWN, 10 p.m.) checks up on Laila Ali and a former “Bachelor,” Chris Soules

A hiking mystery consumes “48 Hours” (CBS, 10 p.m.). A murder down South is recounted on “I’ll Kill for You” (Investigation Discovery, 10 p.m.).

William Holden stars on Turner Classic Movies in “Sabrina” (8 p.m.), “The Bridge on the River Kwai” (10 p.m.) and “Picnic” (1 a.m.). Then comes Penelope Spheeris’ documentary on the 80s Los Angeles punk scene, “The Decline of Western Civilization” (TCM, 3 a.m.).

NBA action has Houston at Chicago (ABC, 8:30 p.m.) and Sacramento at San Antonio (NBA, 8:30 p.m.).

Men’s college basketball includes Vanderbilt at Texas A&M (ESPN2, 11 a.m.), NC State at Notre Dame (CBS, 11 a.m.), Ohio State at Michigan State (ESPN, 11 a.m.), Seton Hall at DePaul (Fox Sports, 11 a.m.), Georgetown at Villanova (Fox, 11 a.m.), Providence at St. John’s (Fox Sports 1, 11:30 a.m.), Oklahoma at TCU (ESPNews, noon), LSU at Kentucky (CBS, 1 p.m.), West Virginia at Baylor (ESPN, 1 p.m.), Syracuse at Florida State (ESPN2, 1 p.m.), Marquette at Butler (Fox Sports, 1:30 p.m.), Creighton at Xavier (Fox, 1:30 p.m.), George Washington at Davidson (NBC Sports, 2:30 p.m.), Alabama at Georgia (ESPN2, 3 p.m.), Iowa State at Kansas (ESPN, 3 p.m.), Stanford at Arizona (CBS, 3 p.m.), South Florida at Tulsa (ESPNews, 4 p.m..), Austin Peay at Tennessee-Martin (ESPN2, 5 p.m.), Indiana State at Evansville (CBS Sports, 5 p.m.), North Carolina at Duke (ESPN, 5:30 p.m.), VCU at Dayton (CBS Sports, 7 p.m.), Louisville at Virginia (ESPN, 7:30 p.m.). Colorado at Utah (ESPNU, 8:30 p.m.), UNLV at San Diego State (CBS Sports, 9 p.m.), Loyola Marymount at Saint Mary’s (ESPN2, 9 p.m.) and Portland at Gonzaga (ESPN2, 11 p.m.).

Women’s games include Miami at Notre Dame (ESPNU, 2 p.m.), Syracuse at Louisville (ESPNU, 1:30 p.m.), Kentucky at South Carolina (ESPNU, 4 p.m.) and Tennessee at Mississippi State (ESPNU, 6 p.m.),

Jim James and the Black Angels play a 2013 episode of the “Austin City Limits” (PBS, 11 p.m., check local listings) that is rerun.

Jonah Hill returns to host a new “Saturday Night Live” (NBC, 11:30 p.m.) with musical guest Future.