Description: screenshot of Tumblr with two posts. One describes how Sherlock Holmes would figure out you're trans before you even do. The second describes how Hercule Poirot would figure out you're trans after initially suspecting you of murder and then clearing you're name. Then he gives you a kissy kiss.
Yes, that did happen. She was supposedly a teen supermodel who happened to have androgen insensitivity and XY chromosomes.
She wasn't really trans, though. She was assigned female at birth, lived as a woman, and as far as we know from the episode's story, she kept living as a woman. Trans-adjacent, but not exactly the same thing.
I saw that episode as a 17 year old who had not yet gotten my period from a family of women who got it like clockwork before their twelfth birthdays. I freaked out because I knew that that had to be my issue, and I felt really awkward about telling my dad.
Gee, it would have been nice if it had occurred to me then, that the big problem most cis people would have with finding that out would not be an awkward conversation. But nope, that took over a decade.
I know she wasn't but sometimes that's all the representation people get.