it's hard for me to tell. I listened to the top 40 religiously every Sunday afternoon until I was about 14ish, which is about 2002ish. But I still had a sense of ~the charts~ and who was number one, who was popular etc until maybe six or seven years ago. Now I barely keep up, the pop I like isn't popular and I discovered the pleasures of ambient and the more esoteric end of my music taste. So I can't tell if it's because it's the age I backed away or if it genuinely did just stop being significant.
One of the things I love about the TOTP repeats (currently, we only started making an effort to catch them from 1988 onwards) is how diffuse they are. You've got utter dreck from terrible white people brushing up against Italian house crossovers and the birth of hip-hop. You don't get that sense of tribalism in fandom any more, everyone is into everything because everything appeals to everyone.
One of the things I love about the TOTP repeats (currently, we only started making an effort to catch them from 1988 onwards) is how diffuse they are. You've got utter dreck from terrible white people brushing up against Italian house crossovers and the birth of hip-hop. You don't get that sense of tribalism in fandom any more, everyone is into everything because everything appeals to everyone.