Grayson may be investigating Lady Jayne's connections to The Order of the Dragon, but that doesn't stop him from romancing her in this new episode. Meanwhile, Mina faces a critical challenge. NBC/Global, 9 p.m.
With a manic Nick on the loose, Monroe, Hank, Rosalee and Juliette try to stop him before he does any more damage. Also, Renard cleans up zombie fallout. NBC/CTV, 8 p.m.
George Stroumboulopoulos: Matthew Good
Jay Leno: Andy Cohen, Empire of the Sun
David Letterman: Brian Regan
Craig Ferguson: Geoffrey Rush, Dale Earnhardt Jr.
Jimmy Fallon: Harrison Ford, Padma Lakshmi