This is the second time, along with the pilot episode, where the Professor shows off his drawer of various lengths of wire.
Larry Bird really did not want to appear in the series at first, he was contacted about making an appearance in A Leela of Her Own (2002) but declined, he was asked a few more times about appearing in episodes with the Globe Trotters but turned it down each time. However he finally agreed to appear in this episode so the writers decided to make a joke out of it and have him record the same voicemail he left when declining to appear in A Leela of Her Own (2002).
WILHELM SCREAM: During the G.I. Zapp spoof, multiple weapons burst forth from Bender's chest. The scream is heard when he attacks with the chain saw.
All characters in "Bendee Boo and the Mystery Crew" segment have correct five-fingered hands.