It was after CD. It launched around the same time MP3 players became popular (just before the first iPod). Doomed format that was kinda neat. The Walkmans looked cool and they didn't skip like their CD counterparts.
It's a longstanding tradition to insert modernized, topical lyrics into Gilbert and Sullivan. This staging is from Stratford 1984 and if you keep listening there is a bunch more stuff about Canada at the time. Separatists etc.
Funny thing is, the original lyrics that have been replaced remind me of you too because they talk about the banjo serenader being on the list. I have seen evidence you might agree with that.
I like jazz and soul and blues, I know the big names and the popular songs but I've never gotten truly into it, I know there's ton of great stuff out there, feels like I'm missing out but at the same time excited there's so much to discover