This film's earliest documented telecast took place in Cincinnati Friday 2 December 1949 on WKRC (Channel 11).
Fred Cavens was Bob Steele's real life fencing instructor, which is why their bout was so well choreographed.
The failure of the original copyright holder to renew the film's copyright resulted in it falling into public domain, meaning that virtually anyone could duplicate and sell a VHS/DVD copy of the film. Therefore, many of the versions of this film available on the market are either severely (and usually badly) edited and/or of extremely poor quality, having been duped from second- or third-generation (or more) copies of the film.