http://www.nydailynews.com/entertai...ent-judges-face-real-danger-article-1.1410210 ........................ Sure enough, the first act at Radio City provided thrills and spills when, thanks to a leaky water tank, magician Alexandria the Great was forced to perform her escape act before the 9 p.m. live broadcast begab, When it aired an hour later between live segments, judges Mandel, Klum, Mel B and Howard Stern, along with the 6,000 audience members, already knew sheâ€™d escaped a watery grave while America held its breath. The â€œAGTâ€ sideshow has been no less exciting. Off camera, Stern routinely searches the crowd for his wife Beth, exchanging thumbs-up, thumbs-down signals over acts heâ€™s just voted on. Following one opening night musical performance featuring a pint-sized heavy metal singer that Stern judged gimmicky and Mandel endorsed, Stern traded disapproving glances with the missus, then walked over to Mandelâ€™s chair and wound up in a heated chest-to-chest debate with his startled co-judge. From 10 rows back, audience members could hear Stern demanding, â€œDid you really like it?â€ Last yearâ€™s finalist Tom Cotter, who lost out to a team of show dogs, tells Confidenti@l his post-â€œAGTâ€ career as a comedian has been â€œfantasticâ€ and he expects to see comedians fare well this season. â€œI just got a deal with HBO,â€ he told Confidenti@l exclusively. â€œ$9.95 a month and the first three months are free,â€ adds the jokester. .