Quite a few! One of my best friends was interviewed on Sky News last month in his St John Ambulance role about helping to deliver the COVID vaccine roll-out!
My best friend was on a BBC game show that only lasted one series- Epic Win. You can still see her on YouTube and she is still very into the thing that got her on there.
My old history teacher won or got quite well through 15 to 1 I think. Another acquaintance from that school was on Antiques House on Sky with her mum. Also a teacher in the junior dept of that school was in a Songs of Praise choir. We had progress reports on their preparation and people tuned in to see her- I think someone managed to freeze frame it. Same school also had a few people get to be cheerleaders on SMTV Live- we all tuned in to watch. One of my drama teachers had been in Brookside, too for a few eps. The glamour!
A boy I went to VI form with is an actor and was the face of a Pizza Hut ad in Europe and another boy in my year played rugby for England so was on TV a bit- super tall so hard to miss him. A girl from that school is now a Dr and was interviewed on the TV news after running out to help treat Westminster Bridge attack victims. She's actually a really horrible person though so that was strange to watch- although she obviously did a wonderful thing.
Someone I knew vaguely at uni turned up in a 3-line role in The Windsors and someone else I vaguely know from my hobby works for BoJo so has been on the news in that capacity. Someone I used to quiz against also popped up as a feted team captain/unstoppable answer machine on Uni Challenge and one of my best friends has been on a date with Bobby Seagull of Uni Challenge fame!
Someone a few years above me at school who left randomly partway through VI form turned up on Baby Beauty Queens running a pageant franchise! It was a bit of a change from school where she was best known for having really long hair, a floaty/fussy taste in clothes and shoes and being the only girl in school to play the harp! She had a really god awful surname which she had understandably changed to a very clearly made up one. They used a venue very near me for their pageant and I got my mum to check it was them as unbelievable amount of coincidences otherwise and she recognised the very wafty mum as well as the daughter!