It (https://tvtropes.org/pmwiki/pmwiki.php/Series/ER) was arguably the best drama (https://www.avclub.com/10-episodes-that-will-remind-you-why-er-was-the-top-dra-1798232974) of the '90s (maybe tied with Homicide (https://www.reddit.com/r/Homicide_LOTS/comments/i2ewh4/homicide_life_on_the_street_the_best_tv_crime/)) and Seasons 1-6 (at least) are classics (https://screenrant.com/er-best-episode-season-ranked/).