Cathay Boy's point is well taken on the Taipei metro system. In many cases, the announcements for the next station begin the moment the doors shut at a departing station. The never-ending announcements, however, provide good practice on how to ignore it all, which kind of defeats the purpose of all the messages in the first place.
Back to CX, flights from Taiwan to Japan can get really over the top with all the announcements -- of course, Cantonese, Mandarin, Japanese, and English, and then sometimes an over-zealous crew member will pipe in with Taiwanese. It sometimes makes watching a 2-hour movie on a 3.5-hour flight an exercise in futility.
Since everyone has personal screens now, why can't some tone be issued over the PA system directing people to note the message on their AV system? Just like I don't get why they continue to waste resources in printing and handing out menus. Simply put the menu on the AV system.
There, I've saved CX a million bucks a year. How 'bout rewarding me with an Op-Up? Actually, I've already had quite a few, and Cathay Boy's been pining for one for a long time. Give it to him as an Xmas present.