24: Live Another Day
The thrills just won't stop now Jack (Kiefer Sutherland) is back in action. In this new episode, Jack and Chloe (Mary Lynn Rajskub) and those they trust try to track down the source of the threat and eliminate it. Fox/Global 8 p.m.
Remembering the Artist: Robert De Niro Sr.
Academy Award winner Robert De Niro introduces viewers to an artist close to his heart -- his own father. Robert De Niro Sr. was a fixture of the pop art movement and though his work went largely unrecognized during his life, it had great influence. HBO Canada, 9 p.m.
The ladies are back with more drama, and this season gets steamier than ever. A tight-knit group of best friends, Savannah (Alyssa Milano), Karen (Yunjin Kim), April (Rochelle Aytes) and Josslyn (Jess Macallan) live scandalous lives. ABC/CTV 9 p.m.
David Letterman: Kelsey Grammer, Willie Nelson
Jimmy Fallon: Clint Eastwood, Jack White
Craig Ferguson: Dennis Miller Ashley Madekwe
Seth Meyers: Steve Buscemi, Jake Tapper
Jon Stewart: Philip K. Howard