Gerard Christopher personally sold VHS tapes and DVDs of episodes on his website. Christopher owns the master tapes of all of the episodes in which he portrayed Superboy. Christopher stopped selling them when Warner Brothers acquired the rights and released official DVD sets.
The show was canceled following a lawsuit filed by Warner Brothers (the company that owned the Superman "family" of characters) against the Salkinds who had leased the rights in the early 1970s and made the "Superman"(Christopher Reeves) film series. The Salkinds produced the first 3 films, and sold the rights to "Cannon/Golan Globus Production" who released Superman IV: The Quest for Peace (1987). WB claimed that they had first shot at making a series (the show was distributed through Viacom). The case was settled and the rights officially reverted to WB and the show has not been rerun in North America since, although a DVD release of the first season did occur in 2006.
This was the first weekly TV series to be produced at the then new Disney/MGM Studios in Orlando, Florida. For the second season, the series moved several miles down Interstate 4 to Universal Studios Florida, the largest motion picture and television sound facility outside Hollywood, where it was then showcased as that studio's first weekly television product.
The first two seasons were set at Shuster University, and the school had a building called the Siegel Center. This was a reference to the original creators of the Superman/Superboy characters, Jerry Siegel and Joe Schuster.
By the time this series was produced, Superboy had been nullified from the regular DC Universe continuity; a Superboy - Kon-el - did appear later, after this series had been canceled, but he was not the same person as Superman in the current continuity.
The deletion of Superboy from the regular DC continuity caused problems with LSH continuity, so it was explained that Superboy was from another dimension created by the Time Trapper. He was then killed off a year or so before this show actually aired.