March 27, 2009 8:00 am The Birth of ER America is preparing to say goodbye to one of NBC‘s longest running shows next Thursday. After 300-plus episodes, here’s a look at the beginnings of the hit medical drama. US & World Videos 0:53 Police in New Jersey wrangle runaway “ham-some” pig 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 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance