Tuesday, May 12, 2015 ratings — New episodes: The Voice, Undateable, Chicago Fire, Hell’s Kitchen, American Idol, NCIS, NCIS: New Orleans, CSI: Cyber, Dancing with the Stars, Marvel’s Agents of SHIELD, The Flash, and iZombie. Reruns: (none).

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These are the fast affiliate ratings. The percentages represent the change since the previous original episode. (Percentages aren’t given for reruns or specials.) To see past ratings for a particular show, click the show’s link. The show pages are updated with the daily final ratings when they become available. Those pages include season averages to date.

What were you watching last night? Original network programming, reruns, cable, or something else? What was the best thing you saw?