Random discovery of the day: the word BACKRONYM.
(Backronym = A phrase constructed to fit an acronym/abbreviation)
So today, the tagline of SBS channel (Australia) has gone from "Six Billion Stories" to "Seven Billion Stories" (and counting). Apparently, neither of them is the original expansion for SBS; they are backronyms for SBS - Special Broadcasting Service.
I wonder if I was the only one who got it wrong.
[not that I don't have other things to worry about :D]