Only three Sleestak costumes existed. The production team had to merge shots and use editing tricks to make more appear on screen.
Bill Laimbeer, former Cleveland Cavaliers and Detroit Pistons center, was a Sleestak during the show's first season.
Writer David Gerrold named Cha-Ka after singer Chaka Khan, whose song "Tell Me Something Good" was receiving heavy radio airplay as the show was being developed.
The series originally aired on NBC Saturday mornings. Seasons One and Two had a 10:00 am (Eastern) time slot. Season Three was shown at 11:00 (Eastern) and included clips of the following week's episode prior to the closing credits.
Wesley Eure performed songs at the end of three third season episodes with lyrics pertaining to the lesson learned in the course of the episode.