The release in Australia was postponed because Miriam was going to be a surprise guest on Big Brother. On the first meeting in the house where she shook hands with one of the participants, they were able to tell immediately that Miriam was not a cis woman. The show played up the “are they/aren’t they” theme a bit, but they did have an episode where the discussed her being trans. It was kinda a big deal at the time because it wasn’t really a “prime time TV” topic. I’m sure there was still a lot of jokes and awful context at times, but also, it was visibility that, from what I recall, wasn’t spoken about in the mainstream.
I remeber watching “there’s something about Miriam” too (early 200s). it was a little bit heart breaking. I was shipping her with the runner up, who ended up saying he would have dated her, but she went for boring Tom who rejected her. It was hard to watch because they made a mockery of the contentents and Miriam, and also the televised heartbreak.