The holidays are about to get a whole lot brighter with ABC’s immensely popular decorating competition series, “The Great Christmas Light Fight,” premiering MONDAY, NOV. 26 (8:00-10:00 p.m. EST). Produced by Fremantle, the hit holiday series is back for a sixth season with returning celebrity judges: lifestyle expert Carter Oosterhouse and interior designer Taniya Nayak. ABC also announced the pickup of Season 7 to air in 2019.