8 p.m. on 6, ‘‘NCIS’’ — Gibbs (Mark Harmon) and his colleagues are on a mission to take down the world’s most wanted cyberterrorist. To accomplish that, they need to find a certain hacker who may hold the key to tracking down their quarry in the new episode ‘‘Canary.’’ Michael Weatherly, Sean Murray, Cote de Pablo, David McCallum and Pauley Perrette also star.
8 p.m. on 7, ‘‘Pioneers of Television’’ — Miniseries still rank among the top-rated programs in television history. ‘‘Roots’’ was the biggest, and the season finale has interviews with some of its stars, including LeVar Burton, Louis Gossett Jr., Leslie Uggams, Ben Vereen, John Amos, Georg Stanford Brown and Ed Asner. Also weighing in are key players from ‘‘The Thorn Birds’’ — which marks its 30th anniversary this year — including Richard Chamberlain, Rachel Ward and Bryan Brown.
9 p.m. on 6, ‘‘NCIS: Los Angeles’’ — An ambush connected to a cartel kingpin with terrorist ties has Sam, Callen, Kensi and Deeks (LL Cool J, Chris O’Donnell, Daniela Ruah, Eric Christian Olsen) working under cover as an elite tactical unit to investigate. Linda Hunt, Barrett Foa and Renee Felice Smith also star in the new episode ‘‘Kill House.’’
10 p.m. on 6, ‘‘Vegas’’ — As Jack (Jason O’Mara) delivers some very bad news to Mia (Sarah Jones), he struggles to keep another crucial bit of information from her and Ralph (Dennis Quaid) in the new episode ‘‘The Third Man.’’ Michael Chiklis, Carrie-Anne Moss and Taylor Handley also star.
10 p.m. on COM, ‘‘Tosh.0’’ — Daniel Tosh’s razor-sharp humor is back for another season of this series that comments on all things Internet, including viral videos, bizarre bloggers and social-media morons. Plus, a whole new group of poor souls who achieved Internet infamy will get a chance at ‘‘Web Redemption.’’
10 p.m. on TBS, ‘‘Cougar Town’’ — As Jules (Courteney Cox) decides it might be time to get out of real estate, Bobby (Brian Van Holt) finds a dream job of his own: running a burger truck. Now all he has to do is keep Ellie (Christa Miller) from driving his customers away with her rudeness in the new episode ‘‘Runnin’ Down a Dream.’’ Josh Hopkins also stars.