At 8:46 on the DVD, on the left side of the screen, you can see the edge of the jungle set, a 2x4 propping up the set wall, and the top of a truncated tree prop.

When Holly sprains her ankle, Rick and Will must get Ta and Sa to help Cha-ka take Holly back to High Bluff. While Cha-ka is always willing to help, Will worries that Ta and Sa won't be willing and Rick remarks, "Well, we'll just find out if Ta ever read Tom Sawyer." This is a reference to Mark Twain's 1876 novel The Adventures of Tom Sawyer. More specifically, Rick is referring to an incident in the book where Tom uses reverse psychology to convince the other neighborhood children what fun he's having painting his aunt's fence and they trade him various trinkets to get turns painting the fence for him.

At 11:38, 19:12, and 21:20 on the DVD, you can see the edge of the "stormy sky" matte background on the left-hand side of the screen.

How did Zarn come up with the name Fred for his robot? Was it plucked out of Rick or Will's mind? Given how Zarn likes to play mind games, perhaps Fred was someone who had bullied Rick as a youth?

I really like the music in the final scene as Rick and Will look back on Zarn's crushed lightship and regret the action they had to take to stop Zarn's ill-advised attempt to power his way out of the Land. Not sure of the instrument (a clarinet maybe?) but it is a sad strain, simple but effective. Listen: I Guess We Won.wav