NCIS: Los Angeles
Callen finds himself on suspension after his showdown with the Chameleon in this rebroadcast of the season premiere. The entire L.A. team is shaken, and Hetty resigns, forcing her to adjust to retired life. CBS, 7 p.m.
Pioneers of Television
PBS's current collection of TV nostalgia ends with a look at the miniseries genre, including interviews with the cast of Roots and a long-overdue reunion of The Thorn Birds' Richard Chamberlain and Rachel Ward. PBS, 7 p.m.
Bering Sea Gold
When the weather takes a turn for the worse, captains lose their tempers and members tap out in this new episode. Meanwhile, a determined Scott M sets off without crew, but soon hits a honey hole. Also, Zeke goes back to the Clark. Discovery, 9 p.m.
George Stroumboulopoulos: Clara Hughes
Jay Leno: Charles Barkley, Jewel
David Letterman: Bruce Willis, Little Big Town
Jimmy Kimmel: Jessica Alba, Bobby Flay
Craig Ferguson: Ted Danson, Teresa Palmer
Jimmy Fallon: Josh Duhamel, Craig Robinson
The Daily Show: Mike Piazza
Conan O'Brien: Bill Maher, Celeste Anderson