Emma's comment didn't strick me as odd at all. I was 16ish when Di died and I watched the funeral and found the whole thing upsetting. Remember Di was big news because of the divorce, Dodi, etc leading up to her death so even though I wasn't alive for her wedding, I knew all about her and was impacted. Also, Price William was ALL over the covers of teen magazines at the time so there was exposure that way as well
That's not what ddwwlym was taking issue with. If Emma was about to be a senior in HS in 1997 there is no way she remembered watching Diana's wedding in 1981.