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 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 1:59 TikTok's Maddy Baloy dead at 26: Gordon Ramsay and Tay Lautner pay tribute 4:05 Familia dominicana descontenta con servicio de funeraria