ICYMI: NBC Announces Summer LineupWith a proven track record of winning for 11 consecutive years, NBC once again delivers an upcoming lineup of mega summer premieres. Big stars, high-stakes competition and an Emmy Award-winning series make NBC the must-watch destination for the whole family. “America’s Got Talent” and “Dancing with Myself” will launch NBC’s summer season with back-to-back premieres on May 31. “American Ninja Warrior” premieres June 6 and the anticipated return of Emmy Award-winning documentary series “Who Do You Think You Are?” (7-8 P.M. ET/PT) *SEASON PREMIERE*After nearly 10 years, the Emmy Award-winning documentary series “Who Do You Think You Are?”