Law enforcement officials tackle international crimes and bringing brutal cross-border criminals to justice. The one-hour drama stars William Fichtner, Donald Sutherland, Tom Wlaschiha, Moon Dailly, Marc Lavoine, Gabriella Pession and Richard Flood. CBC, 9 p.m.
The Biggest Loser
The players are preoccupied with the dreaded "two-week curse," especially after they learn only one person's weight from each team will count at this week's weigh-in. What's more, the winners of the first challenge get a weigh-in advantage. NBC, 7 p.m.
Person of Interest
A season of twists and turns continues as Finch and Reese wonder where the Machine will lead them next in this new episode. Also this season, Reese and Finch work with deadly operative Shaw (Sarah Shahi). CBS/CTV, 9 p.m.
Jay Leno: Robin Williams, Mark Cuban
David Letterman: Sylvester Stallone, Anna Faris
Jimmy Kimmel: Johnny Knoxville, Julianne Hough
Craig Ferguson: Michael C. Hall, Laura Bell Bundy
Conan O'Brien: Samantha Gordon, Jake Owen