It didn't used to be much of a problem for me back when I watched most TV shows on TV, because I'd usually watch slowly (week after week) and frequently watch reruns when the show was in syndication as I waited for the next season. However, with streaming, it's becoming more common for me to forget. I'm not the type to binge, its just that having the show available to watch whenever I want, making my watching habits wholly random and unreliable, and not really feeling compelled to watch it more in the interim between seasons because now there's just so much stuff to watch elsewhere makes it so I forget things more.

That's my theory for my situation anyway because my memory has become absolute garbage as a whole over time, so maybe I'm way off. lol