Used to do BA 747s 4 times a year, back and forth, they cascaded them to the Beijing route after they’d replaced them on transatlantic and Hong Kong.
Really BA’s way of saying “Beijing is a busy route but we don’t give a shit about it compared to New York, Las Vegas and Hong Kong because we’re only competing with Air China who are dogshit anyway”.
So thanks for that BA. I enjoyed watching Fawlty Towers on a sepia screen the size of a postage stamp on your crap 40 year old planes with torn seats when everyone else was enjoying Dreamliners.