Meet Al Capone...and to find out what happens to Mr. Capone and the rest of the cast, tune-in to all new episodes of "Boardwalk Empire" every Sunday night at 9pm only on HBO. For more information, visit br Watch Boardwalk Empire online at HBO GO® br With HBO GO, you can watch every episode of Boardwalk Empire on your iPad® (), iPhone® () or Android™ () smartphone. Free with your HBO subscription through participating TV providers.