Stand Up to Cancer (8pm) - This annual cancer fundraiser – running simultaneously on ABC, CBS, Fox, NBC, TNT, ABC Family, ION, VH1, E!, Bravo and National Geographic Channel, just to name a few – is hosted by Katie Couric. It features musical performances by the Who, Jennifer Hudson, Ariana Grande, Dave Matthews, Common and Lupe Fiasco. Also appearing are Gwyneth Paltrow, Jennifer Aniston, Halle Berry, John Hamm, Will Ferrell, Rob Lowe and Eric Stonestreet.
The Knick (10pm, Cinemax) - During surgery, Thackery's hand is forced by Algernon, which irks Gallagher. Also, a recovering Abigail regrets her involvement with Thackery and Bertie receives a scolding from his physician father, who is unhappy with his son's career path.