MASH season 4.

This season was like the apex between the earlier seasons, with their strong comedic writing, and the later dramedy-heavy, often experimental stories (my preferred era, but both had their strong suits). So many classic episodes in this season. And while it does have one of the more divisive episodes ("Hawkeye"), it's actually one that I do enjoy for what it is. Not a favorite, but doesn't diminish the season for me like it might for some people.