To make the sack of gold look more enticing, near the end of the episode (both in the jail and in their hideout), the special effects dept colored it to make it appear bright red.
The identity of the Nightwatchman is still unknown to the majority of the characters, yet in a major fight sequence in this episode, it's quite clear that the Nightwatchman has breasts.
Season 2 kicks off with a new title sequence.
When captured by the Sheriff of Nottingham, Robin Hood is hung dangling from a rope, a normally extremely painful type of torture. Jonas Armstrong was supported by the feet by some crew members whose hands are occasionally visible in some shots.
Robin's men repeat a famous quote from The Two Ronnies: So it's "Goodnight" from me. And it's "Goodnight" from him.