Two things:

1. AFAIK NTSC doesn’t support it, so North America never had it. There were equivalent standards but not one universal one to unify around.

2. Are there that many cultural references? I’m struggling to think of many that I saw growing up and I’m in my thirties. It existed (and I used it a lot!) but it wasn’t exactly part of the cultural zeitgeist. The internet had already taken over.