WATCH THIS: "Christmas in Rockefeller Center" (8 p.m., NBC): It's time once again to light up that big tree in the Big Apple. The dazzling display of musical talent includes Mary J. Blige, Toni Braxton, Mariah Carey, Kelly Clarkson, Kenny "Babyface" Edmonds and more. "Mob City" (9 p.m., TNT): This slick and seductive show whisks viewers back to 1940s Los Angeles, where cops do battle with power hungry gangsters. Jon Bernthal, Ed Burns and Neal McDonough head the cast. "SNL Christmas Special" (9 p.m., NBC): The word "Christmas" may be in the title, but we'll blurt out a big "Bah humbug!" if this collection of "Saturday Night Live" holiday sketches doesn't include Adam Sandler's Chanukah song.
"Kirstie" (10 p.m., TV Land): Kirstie Alley returns to prime time in this cleverly titled sitcom. She plays a Broadway diva who is thrown for a loop when the son she gave up for adoption 26 years ago suddenly shows up.
The Rockefeller Center Christmas tree is lit during the 80th annual tree lighting ceremony on Nov. 28, 2012, at Rockefeller Center in New York. (AP Photo/Kathy Willens)
Also on Wednesday: "Arrow" (8 p.m., The CW) "Survivor: Blood vs. Water" (8 p.m., CBS) "The X Factor" (8 p.m., Fox) "Modern Family" (9 p.m., ABC) "National Lampoon's Christmas Vacation" (10 p.m., ABC Family) "American Horror Story: Coven" (10 p.m., FX) "Killer Contact," Series premiere (10 p.m., Syfy) "Nashville" (10 p.m., ABC)
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