You've just shot yourself in the foot with that quote.there is no documentary evidence proving just how many watched the concert and initial broadcast.
There's no evidence at all.
Do you not get it? The billion thing was quoted by Parker at the 1972 press conference as a POTENTIAL (and of course impossible) figure. Pure hucksterism and carny from ol' Tom.
The press ran with it. Elvis fans followed.
It went from potential to FACT, exaggerated over the years.
As great as Elvis was, do you seriously believe more people tuned in to Aloha than watch man landing on the friggin' MOON?
Come off it.