I agree that Lost hit it really big, but that was a different time, including for this board. Here, for instance, is the thread about the final episode, including indices for each season’s episodes. (Look at how many posts there were for the episode threads.) Lost premiered in September 2004 and ended in May 2010, so before any streaming services were available. There were cable channels, but broadcast channels were still much more popular.
Now a show like Bridgerton or Ted Lasso can get lots of references in popular culture despite being seen by many fewer people.