Translation: "I still haven't seen the show, hence me saying this as if it were fact. Even though it isn't. There's been, maybe, one show that's been like it before, and even it was a drama. But I wouldn't know, because I haven't seen it despite telling everyone else how to act. I am, by the very definition of the words, blatantly ignorant about what I'm talking about."
I feel like I'm missing some backstory here. What the hell are you talking about? At no point did Hermiod
tell anybody else how to act or what to watch. He merely asked why the genre of "singing teenagers" (if you can call that a genre) is so popular right now.
"High School Musical" springs to mind.