sports betting December 9, 2021 6:17 am MGM National Harbor to Launch Sports Betting Sports betting begins at MGM National Harbor on Thursday. News4’s Justin Finch goes inside the room where gambling fans hope to have some luck. Local 2:48 DC Irish pub The Dubliner celebrates 50th anniversary 1:59 The Weekend Scene: Maryland Day, Celtic Festival & more 2:47 How exactly DO you farm an oyster? 2:20 French restaurant opens in historic 14th Street building that housed former bank 1:56 The Weekend Scene: Festival season and free entry to National Parks