The Mentor character, as played by Les Tremayne, was unique to the TV series and did not originate from the Shazam! comics. His background, and the origin of his relationship to Billy, were never explained. In later issues of the 1970s Shazam! comics meant to tie-in with the TV show, Billy's Uncle Dudley grows a moustache, drives Billy around the country in an RV, and tells Billy that the Wizard Shazam chose him to be Billy's "mentor", essentially turning Dudley into the comic book version of Mentor. The Mentor character has not been used since, although Uncle Dudley is shown driving a similar RV in the 2010s animated seriesJustice League Action. Neither Mary nor Freddy appeared in this series, although the three main members of the Marvel Family did appear together in new stories in the tie-in era comics. After Shazam! was paired with The Secrets of Isis in 1975, Joanna Cameron, the star of Isis, appeared as Isis and her alter-ego Andrea Thomas on three episodes of Shazam!, and John Davey likewise appeared as Captain Marvel in three episodes of Isis. Shazam! is one of the first Filmation productions to carry the trademark spinning executive producers' credit wheel during the opening credits rather than the closing credits.
Broadcast history
After its original network run, Shazam! was brought back for reruns from January 5 through August 30, 1980. A handful of episodes appeared on Nickelodeon/Nick@Nite’s sister network, TV Land infrequently throughout the 2000s, originally appearing on the "Ultimate Fan Hour" in early 2004 as part of the "TV Land Kitschen" late weekend night programming block. Since early March 2019, the series has been available for streaming on the DC Universe streaming service.
The pilot episode, "The Joy Riders", was released as Warner Bros. Television Commemorative DVD Volume 8: Shazam, part of a DVD series designed to promote 50 years of Warner Bros. Television and to promote other TV shows that were not yet released on DVD. It was included with the release of the third season of Wonder Woman in 2005 in North America. Meanwhile, the rights to The Secrets of Isis remained with Filmation's successors Entertainment Rights, Classic Media, and DreamWorks Classics; that series was released on DVD in its entirety in 2007, including the three episodes featuring Captain Marvel. On October 23, 2012, Warner Bros. released Shazam!—The Complete Series on DVD via the Warner Archive burn on demand service. Warner Archive re-released the complete series in HD on a four-disc Blu-ray set on October 8, 2019. The new HD masters for Shazam! were created from restorations of the original Filmation 16 mm and 35 mm film elements by Warner Bros.' in-house post-production team. The series is also available at the iTunes Store, as well as on the DC Universe streaming service.
