The announcer who read, "Faster than a speeding bullet, more powerful than a locomotive, able to leap tall buildings in a single bound" was Willard Bill Kennedy (1908-1997) who appeared in the second season episode "Crime Wave" in 1953.

During the early developing years of black & white TV Superman's costume was actually brown (for red) and grey (for blue) for the first two seasons because it provided a better and starker contrast for the black & white filming. In 1955, the show began to be filmed in color and Superman's costume became the same color as the original comic strip series red and blue.

In the Superman episode of the Big Squeeze (1953) - a somewhat unknown actor named Hugh Beaumont got his famous TV start credentials when he played an ex-convict and later became the famous suit, shirt & tie sporting father in the Leave it to Beaver series as Ward Cleaver. Even playing the ex-convict role Ward was still portrayed as the perfect father to his TV son Tim. Go figure.

All episodes were filmed out of sequence because of a very limited budget. Certain scenes in locations were all being done at once like Perry White's office, Clark's office, Clark's apartment or a common shared office or room in different episodes. This is the reason why the actors always seemed to wear the same clothes all the time in a lot of episodes. Even the spring boarded fly out of the Daily Planet 10th floor window scenes and the back alley fly offs after Clark just transformed into his Superman costume were filmed at the same time and used in several of the same episodes to save money.

George Reeves was suspended by cables when he appeared to be flying during the first two seasons. In later seasons, as technology advanced he was positioned on a molded platform which conformed exactly to his body shape, and wore his costume over all of that. Landing scenes were accomplished by having George jump off of a ladder with the accompanying trademark air "er-zip" sound effect.

Initially, the cast regulars were paid a whopping $200 per episode which was pretty superior wages for the time. They pulled together and had to beg the producer after the show became popular to give them a $50 raise (that's a 25% increase), which they received, but the producer didn't speak to any of them for a couple of weeks afterwards.

The first 26 episodes were actually filmed in 1951, but did not appear on television until 2 years later in 1953, when Kellogg's Cereals agreed to sponsor the show.