An evening of modern-day treasure hunting kicks off as bidders gamble on finding rare collectables in a prime-time marathon. Cameras follow the bidders as they take a quick look inside storage units before deciding whether or not to bid on the contents. A&E, 6 p.m.
Olivia sets out on a dangerous journey into the unknown as the battle for humanity's future comes to its climactic conclusion in this two-hour series finale. In the end, Peter, Olivia, Walter, Astrid and Broyles face off against the Observers. Citytv/Fox, 7 p.m.
Dramatic reconstructions and first-hand testimony explore the truth about brainwashing in this new series. Experts take a look at the criminal pasts of ordinary people who were manipulated by con artists and criminals into doing their bidding. History, 9 p.m.
Jay Leno: Bob Costas, Big Boi
David Letterman: Kevin Bacon, Brian Kiley, the Amazing
George Stroumboulopoulos: Best Of The Week show
Craig Ferguson: Carrie Fisher, Steven Yeun
Jimmy Fallon: Jessica Chastain, Josh Gad, Alan Zwiebel, the Joy Formidable
Jimmy Kimmel: Jimmy Kimmel Live: This Week -- clips from the past four shows