"Nisei" premiered on the Fox network on , and was first broadcast in the United Kingdom on BBC Two on . The episode earned a Nielsen household rating of 9.8 with a 17 share, meaning that roughly of all television-equipped households, and of households watching television, were tuned in to the episode. A total of viewers watched this episode during its original airing. "Nisei" later won two Emmy Awards: one for "Outstanding Individual Achievement in Sound Editing for a Series" and one for "Outstanding Individual Achievement in Sound Mixing for a Drama Series."