I never knew that.
It was noted as such when it first came out.
Hm. Minus the mutant genius, that’s also the premise of the Rebel of Rhada series by Alfred Coppel (writing as Robert Cham Gilman). A galactic empire with medieval science and technology! Horses in the starship hold! Now that’s space opera!
Or Horse Opera.
Or Space Horse Opera.
Until they wash it.
The first season of The Sopranos seemed to be pretty much a remake/edit of the BBC I, Claudius series.