Fox is devoting tonight’s schedule to new holiday specials. First up, at 8 p.m. ET, is Steve Harvey, hosting Showtime at the Apollo: Christmas in Harlem. But the flashier special arrives at 9 ET, when Taraji P. Henson from Empire hosts, in what is becoming an annual TV event, a Christmas special full of music, fun – and, as expected from a fiery Christmas Cookie, lots of outrageous costumes.