September 18, 2012 1:16 pm Christina Applegate & Will Arnett Talk “Up All Night” Season 2 Christina Applegate and Will Arnett chat on the set of “Up All Night.” They discuss the show’s upcoming second season, which premieres on NBC this Thursday, September 20 at 8:30/7:30c. US & World Videos 1:14 Prince Harry photobombs Meghan Markle's selfie in Nigeria 4:41 How ‘Bachelorette' Hannah Brown knew fiancé Adam Woolard was the one 6:04 Matt Rife reveals wildest gift a fan gave him 7:23 Chrissy Teigen gets ‘sentimental' gift from John Legend every year 2:36 Mandarin immersion program gaining popularity in Orange County