One frame in the fast-paced montage is the message: "Haven't you anything better to do than to go through this frame by frame?"
William the King of Imagination's brief appearance was cut from the Volume 3 DVD set. It is intact on the iTunes release, however.
The last episode to feature the computer animated intro of the camera flying through space and into Ghost Planet Industries, first used in the episode "Late Show".
Season finale for the fourth season, which is the longest season of the series by having 24 episodes, 25 if counting the episode Brilliant Number Two, which is the same episode as Brilliant Number One. The number of episodes for the other seasons ranges between 7-15 episodes.