The original 1957 broadcast of Cinderella, staring Julie Andrews, remains the most watched TV program in history.
To this day.
Over 107 million people saw the telecast (ahead of any Super Bowl game as well as the season finale of M*A*S*H, the most-watched TV series episode of all-time at 105.9 million). Cinderella aired on CBS live and in color (for the four people who had color sets in 1957). Sadly, only the B&W kinescope of it is available today (still in decent shape and on DVD now).
As for the Brandy/Whitney version, it got good reviews and great ratings (60 million people tuned in). By today's standards on television it was definitely considered a big success.
So yes, "R&H Cinderella" is a well established work on screen and stage (many touring companies) outside of Broadway.
"Jaws is the Citizen Kane of movies."
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