As someone who hates memory loss tropes in TV shows, I think that Tabula Rasa in Buffy has a perfect combination of hilarious and slightly cringey moments that makes it perfect. It's probably my favourite ever episode of the show.
So I heard of this a few years ago and I find it really interesting but I've always had trouble closing off my mind to do what I need it to do at the right time. Maybe I'll revisit it though