NBC recently announced premiere dates for its upcoming midseason dramas “Allegiance, “A.D.,” “The Slap” and “Odyssey,” while also slotting the second season of summer hit “Night Shift” and comedies “One Big Happy” and “Undateable,” which also aired in the summer and is returning for a second season. “The Blacklist,” starring James Spader, will move from Mondays to Thursdays, where it will anchor an all-drama block on the network for the first time in decades. The lineup will compete against ABC’s all-drama lineup consisting of “Grey’s Anatomy,” “Scandal” and “How to Get Away with Murder,” which have all helped the network win the Thursday crown in the key Adults 18-49 sales demo so far this season.