NBC announced today the summer premiere dates for new and returning series and specials. And for the first time in over 30 years, the network announced it will telecast the "62nd Annual Primetime Emmy Awards" live coast-to-coast on Sunday, August 29 (5-8 p.m. PT, 8-11 p.m. ET). Summer's top-rated series "America's Got Talent" will return with a two-hour premiere on Tuesday, June 1 (8-10 p.m.