5. Didn't the series originally have a different name?
Yes. The original name of the series (and its starring family) was "The
Flagstones." The name had to be changed when it was realized that the "Hi
and Lois" characters' surname was Flagston. The name "Gladstones" was
briefly considered (and appeared on a number of sketches) before the final
change to "Flintstones."