Episodes 21-22-and 23 were combined for the VHS release "The Mystery of Don Cabrillo". The box cover specified "Original Black-and-White Presentation".
Annette Funicellos appearance on Zorro was a birthday present from Walt DIsney.
Annette Funicello here portrays Anita Cabrillo. Later in S03Ep3, "The Postponed Wedding.", she portrays Constancia de la Torre.