Was watched by 17.3 million viewers in its initial airing, setting the record for the most watched non-sports cable broadcast in television history, surpassing the 17.2 million record set by High School Musical 2 (2007).
There is a post-credits scene.
The third highest user rated episode on IMDb of the series as of January 2017. The second is Too Far Gone (2013) and the first is No Way Out (2016).
Robin Lord Taylor stated on the episode of Talking Dead that followed this episode that he was flown in while shooting Gotham to reprise his role of Sam for his short scene.
A new set of twins go on to play the role of Judith Grimes for season 5. Clara & Charlotte Ward take over the role from Elisea DiFranco & Eleora DiFranco.