For the scenes with The Arm, Kyle Maclachlan and Al Strobel stared at an X. Both had no idea on what the X was, Maclachlan only found out about The Arm when the episode broadcasted.
This episode is dedicated in memory of Frank Silva, who played the sinister Bob, in the original two series of Twin Peaks. He died in 1995, of AIDS.
A TV-14 version of the episode - edited for language and sexual content - was released on YouTube for a limited time in the American region in both June and August 2017.