This is why MASH was so long-running: The situation in question was The Korean War and the conflict between career military types and draftees who had hippie-like values and really didn't want to be there. This allowed for a lot of swapping out of characters when things went sideways.
The TV show was based on the movie and over time Burns became increasingly toxic and crazy and they finally wrote him out of the show and replaced him with a character who could have some of the same inherent frictions with other characters without it being Flanderized into something really stupid and ugly and no longer actually funny.
I've long considered writing a blog about the moral bits in MASH and/or other sitcoms. I sometimes think that might be a better outlet for my keen eye for social patterns than turning my baleful eye on actual people, which tends to be taken as extremely cutting. It's sort of an "occupational hazard" as someone who spent too much time in therapy and sorting my own crap to be at all socially acceptable for small talk with most people.