April 1, 2009 9:28 am ER's Ambitious Live Episode In a show with constant movement and tongue-twisting dialogue, shooting live is not easy. Here’s a look back at “Ambush” – season four’s premiere and the show’s only live episode. Local 2:08 Travis Kelce calls Taylor Swift his ‘significant other' as they attend Charity Gala Date Night 2:30 ‘Baby Reindeer': Inside Richard Gadd's Netflix phenomenon 2:22 Scarlett Johansson and Colin Jost have date night at White House Correspondents' dinner 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger