It was announced on October 19 , 2010 that NBC had ordered an additional 11 episodes of Chuck , rather than the original option of a back nine .
It was announced on May 14 , 2010 that NBC renewed Chuck for a fourth season of 13 episodes .
NBC was announced on October 19 , 2010 that NBC had ordered an additional 11 episodes of Chuck , rather than the original option of a back nine .
It was announced on May 14 , 2010 that NBC renewed Chuck for a fourth season of 13 episodes .