“DC IN D.C.” ON MLK WEEKEND WARNER BROS. TELEVISION GROUP & DC ENTERTAINMENT BRING THE WORLDS OF THEIR TV SERIES AND COMIC BOOKS TO WASHINGTON, D.C. FOR A LANDMARK POP CULTURE EVENT JANUARY 12–13, 2018 World Premiere of the Upcoming DCTV Series Black Lightning for The CW Public Panel Discussions and Appearances by Stars and Producers from Arrow, DC’s Legends of Tomorrow, The Flash, Gotham,…