HBO Sports’ groundbreaking “24/7” reality franchise, which has captured 14 Sports Emmy® Awards, again joins forces with the National Hockey League to take viewers inside one of the NHL’s great rivalries for 24/7 FLYERS/RANGERS: ROAD TO THE NHL WINTER CLASSIC, returns WEDNESDAY, DEC. 21 (10:00-11:00 p.m. ET/PT), exclusively on HBO. Following the Atlantic Division’s Philadelphia Flyers and New York Rangers, the four-episode, all-access series reaches its apex when the teams meet in the fifth edition of the NHL Winter Classic Jan. 2 at Citizens Bank Park in Philadelphia.